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Dr. Pratibha
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This teacher has a fast response time and rate, demonstrating a high quality of service to their students.
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Since March 2026
Instructor since March 2026
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1 repeat student
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Ph.D.-Qualified Biology and Chemistry Tutor | 10+ Years Teaching Experience | All Levels | Exam Prep to Concept Mastery
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From 28 € /h
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I offer personalized online tutoring (via teams , Zoom or Google Meet) and in-home sessions for students of all ages and levels. My lessons are designed to be interactive, creative, and tailored to each learner’s needs, ensuring active engagement and lasting understanding.

With a Ph.D. in Science and 10+ years of teaching experience, I provide flexible session lengths (1-2 hours) and adapt my methods—whether through discussions, multimedia, or hands-on examples—to make complex topics accessible and exciting. Let’s make learning both effective and enjoyable!

Course Subject:
Biology: Biotechnology, Biochemistry, Immunology, Cell and Molecular Biology, Molecular Genetics, Anatomy and Physiology of animals and plants

Chemistry—comprehensive coverage of all five core disciplines to ensure a holistic understanding of the molecular world.

Organic Chemistry: Reaction mechanisms, stereochemistry, synthesis planning, and nomenclature.

Inorganic Chemistry: Coordination chemistry, periodicity, molecular symmetry, and bio-inorganic systems.

Physical Chemistry: Thermodynamics, quantum chemistry, kinetics, and electrochemistry.

Analytical Chemistry: Spectroscopy (NMR, IR, UV-Vis), chromatography, method validation, and data interpretation.

Biochemistry: Enzyme kinetics, metabolic pathways, protein structure, and bioenergetics.

Course Level: Tailored for High School (IB/AP/A-Levels), University/College (Undergraduate & Graduate), and Adult Learners seeking to strengthen fundamentals or prepare for competitive exams.

Location of the Lessons: Live, interactive, and high-quality sessions delivered online—learn from home in the Netherlands or anywhere worldwide, Face to face- at your home or at my place.
Location
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At student's location :
  • Around Amsterdam, Netherlands
  • Around Haarlem, Netherlands
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At teacher's location :
  • Graan voor Visch, Hoofddorp, Netherlands
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Online from Netherlands
About Me
For me, teaching is not just a profession—it is my purpose. With over 10 years of teaching and research experience in various branches of chemistry, molecular biology, and related sciences, I specialize in helping students truly understand biology and chemistry rather than just memorize it.

My teaching style is interactive, patient, and tailored to each student’s needs. Whether you are struggling with the basics or aiming for top grades, I adapt my lessons to your pace and learning style. I focus on building strong fundamentals, problem-solving skills, and exam confidence so that you can approach subjects with clarity and ease.

What I enjoy most are those “aha!” moments—when a concept finally clicks and students begin to solve problems independently and confidently.

With a strong academic background and hands-on research experience, I also connect theoretical concepts to real-life applications, making biology and chemistry more meaningful and engaging.

I don’t just teach —I help you understand it, enjoy it, and succeed in it.
Education
Ph.D. in Zoology – University of Rajasthan, India
M.Sc. in Zoology (Gold Medalist) – VMOU, India
M.Sc. in Biotechnology – Banasthali University, India( Chemistry as a core Subject)
B.Sc. in Biotechnology – Banasthali University, India (Chemistry as a core subjects)
Experience / Qualifications
With over a decade of teaching and research experience, I hold a Ph.D. in Zoology and dual Master’s degrees, including a Gold Medal distinction. I have taught biochemistry, molecular biology, and all the five branches of chemistry at school, university level and as an online educator.

My background as a Scientist provides strong practical insight into laboratory techniques such as PCR, ELISA, and biochemical assays, allowing me to connect theory with real-world applications. I am also qualified through national-level exams and hold certifications in clinical research and data analysis.

I focus on clear concept-building, problem-solving, and helping students gain confidence and achieve strong academic results.
Age
Children (7-12 years old)
Teenagers (13-17 years old)
Adults (18-64 years old)
Seniors (65+ years old)
Student level
Beginner
Intermediate
Advanced
Duration
60 minutes
120 minutes
The class is taught in
English
Hindi
Skills
Reviews
Availability of a typical week
(GMT -04:00)
New York
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At teacher's location and via webcam
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At student's home
Mon
Tue
Wed
Thu
Fri
Sat
Sun
00-04
04-08
08-12
12-16
16-20
20-24
Private lessons
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Biochemistry
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Biotechnology
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Chemistry
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I am self motivated in tutoring for school courses and exams. My goal is to make students to understand scientific courses deeply. You'll learn how to solve problems with illustrations. To understand real case problems, at least one prior experienced need to widen your horizon to transform in logical definitions. If you are struggling with scientific courses , don't worry, I will do my best to assist by my eight-years in teaching experiences.
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Hridya
I can teach at the 10th Grade level or lower.
My classes are catered and modelled according to the students' needs. This class is for those students looking to either get a better understanding or more advanced knowledge on the subject to prepare well for exams and other endeavours.
I can teach either in an exam or selective topic driven way or in a general successive chapter way corresponding to the students' study material.
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Carla
You will be given tips, advice, including with exam technique, available for primary or secondary students.
We can go through exam practice papers, content from class you do not understand or revision. I am a student at the moment myself, so believe I can give an understanding and patient learning environment.
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Izhar
Facing problem in Chemistry? Does your teacher presume that you know every single basic concept and start teaching directly advanced concepts!!
Here is the solution. We'll be starting from the basic concepts and will be mastering over the advanced concepts gradually. You can simply tell for which topic you need more attention and time and which topics are your strengths (if any).

I am providing you a brief summary of our course which we generally follow but that doesn't mean that I am bound to just this much content. In case you have any doubt for any other specific topic related to the subject, you could always come up to me or you need any help in your assignments or projects, you are always welcome.

Here is a brief overview of the topics we'll be covering :

* Some basic Concepts of Chemistry
* Structure of Atom
* Classification of Elements and Periodicity in Properties
* Chemical Bonding and Molecular Structure
* States of Matter: Solid, liquid & gas
* Thermodynamics
* Equilibrium
* Redox Reactions
* Hydrogen
* s-block Elements (Alkali and Alkaline earth metals)
* p-block Elements
* d-block Elements
* f-block Elements
* Organic Chemistry: some basic principles and techniques
* Hydrocarbons
* Environmental Chemistry
* Solid State
* Solutions
* Electrochemistry
* Chemical Kinetics
* Surface Chemistry
* General Principles and Processes of Isolation Elements
* Coordination Compounds
* Haloalkanes and Haloarenes
* Alcohols, Phenols and Ethers
* Aldehydes, Ketones and Carboxylic Acids
* Organic Compounds containing Nitrogen
* Biomolecules
* Polymers
* Chemistry in Everyday Life

In case you have any query, please feel free to contact me.
Give yourself a chance for a better future.
All the best
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Alex
English is filled with nuances and I can help decode this anywhere from basic English to improving vocabulary and conversational skills with a Native Londoner.
Chemistry and other science and maths tutoring available: I can do all school levels and break down science and maths problems making it as simple as possible, also a lot of learning with question solving sets as.
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Safouene
Centralien engineer who has already given private lessons to high school and college students. Tutoring for scientific subjects, assistance in preparing for competitions, baccalaureate, patent.
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Arseniy
Hello, I'm Arseniy, I used to be a chemistry teacher in Ukraine before war started,
and I can help you with understanding chemistry at any level:

✅ Chemistry in High School:
-general understanding of the subject;
-everything you need to pass your exams.

✅ Chemistry for the University:
-General Chemistry (mostly first terms: chemical bonds, reactions, warmth, srochiometry, acids and bases, RedOx) for (bio)chemistry, biology, medicine and ingeneering students;
-Organic chemistry I+II (all degrees);
-Physical chemistry (kinetics, thermodynamics, electrochemistry) for all degrees.

✅About the teaching;

- the lessons can take part at my place, your place, or online;
-after the lesson the student receives homework and sometimes a PDF with additional information;
-we don't only learn during the lessons, but also inbetween.

✅About me:
-Originally from Ukraine;
-one year teacher at a private school in Duisburg, Germany;
-in the last 6 years I've helped over 100 students from different countries to understand chemistry and pass their exams.

I'm looking forward to receiving your messages here
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Sudipta
Dear all,

I am Mr. Sudipta and now residing in Amsterdam as a highly skilled migrant. I have extensive experience in teaching and research in biology and bioinformatics. My primary goal is to clear the concepts. I would love to hear from all who want to have a good grasp of biosciences.
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Shorena
I am an experienced science teacher. I am a student of electronic engineering. My profession includes mostly advanced science. So, I can help you improve your science skills, or start it from the beginning. I understand the fundamentals of teaching a subject and I am able to explain it to students as needed.
I have developed flexible, effective teaching tools and methods to help my students learn science in an effective way.
Contact me for more details.
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Gaspard
After two years in the MPSI then PSI* preparatory class, I am now a student at the Centrale Lille engineering school. Basically, I've been doing a lot more math and physics than I've slept in the past few years.
I have been teaching at all levels for a little over 3 years! But this is the first time I've tried this platform, can't wait to meet you!
In order for the course to be as constructive as possible, I will base myself on your expectations, the chapters that cause you problems, by reworking the basics so as to navigate thereafter between the different themes of the program. My classes are aimed at all students from college to terminale but also to first and second year students in physics and maths.
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Arthur
Hi, reader! :)

I am probably one of the most enthusiastic and versatile tutors in Amsterdam!

I have been tutoring students for over 10 years at various levels, with a focus on middle and high school students. Many of my students have been preparing for exams such as IB, AP, A-level, and IGCSE.

I hold several relevant degrees, including a PhD and MSc in Financial Justice from the University of Amsterdam, as well as a BS and MS in Engineering from the University of Pennsylvania (an Ivy League institution).

While my main area of expertise is math (ranging from simple arithmetic to advanced university-level calculus), I have also assisted students in preparing for high school level Chemistry and Economics exams.

What sets me apart as a UNIQUE tutor, in addition to my extensive background, is my PERSONAL approach to tutoring. I customize my teaching methods to suit each individual student. This includes the way I present material, work through problems, structure our sessions, and provide tailored feedback to help the student thrive. Additionally, I provide all of my students with my personal phone number, allowing them to contact me OUTSIDE OF SCHEDULED HOURS at NO ADDITIONAL COST if they are struggling while studying on the nights leading up to exams!

For me, tutoring is not just about covering the material; it is about tailoring the learning experience so that students can develop the necessary tools to excel in their courses and eventually become self-sufficient, no longer needing a tutor. :)
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Martijn
I graduated as a molecular biologist 20 years ago. Since then I have been making films in which I simplify complex biological concepts. I'm a big fan of biology and I think it would be fun to help you get a better grip on the matter. I can help you briefly with specific topics, or help you for a longer period of time to help you succeed, for example.
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My teaching approach is focused on making learning enjoyable and engaging. I incorporate interactive activities and hands-on experiments to bring Science and Maths concepts to life. By involving students in these dynamic learning experiences, I aim to transform abstract concepts into tangible understanding. Each session is thoughtfully designed to keep students interested and motivated, minimizing fatigue and maximizing retention.

I believe in simplifying complex topics, breaking them down into easy-to-understand segments. This approach helps students grasp and retain challenging concepts with ease. Techniques such as mnemonic devices, visual aids, and real-life examples are integral to my method, ensuring that formulas and concepts are not just memorized, but truly understood.

Regular assessments are conducted to track student progress and identify areas needing improvement. These tests also prepare students for their school exams, ultimately boosting their confidence. I understand the importance of keeping parents informed and involved in their child’s academic journey. That's why I provide weekly reports detailing their child’s progress, strengths, and areas for improvement. This continuous feedback loop ensures that parents are aware of their child’s development and can support their learning at home.

Encouraging words and positive feedback are integral to my teaching method. I strive to build students' self-confidence and to instill a love for learning through positive reinforcement. Setting achievable goals for each student, I celebrate their successes and motivate them to strive for excellence. This goal-setting approach not only drives academic success but also fosters a sense of accomplishment and self-worth.

As a tutor, my satisfaction comes from seeing my students excel and reach their full potential. My ultimate goal is to empower students with the knowledge and skills they need to succeed in Science and Maths. I am always available to support my students, offering additional help and resources as needed to ensure their success.

I foster an open environment where students feel comfortable asking questions, no matter how simple they may seem. This curiosity drives deeper understanding and encourages a proactive approach to learning. By incorporating games, puzzles, and interesting activities, I ensure that learning remains fun and engaging, keeping students excited about the subjects.

Join my Foundation Course in Science and Maths and watch your child develop a strong foundation, confidence, and a genuine love for these essential subjects. Let’s work together to achieve academic excellence and make learning a fun and rewarding experience. “Excel in Subjects, Soar in Confidence!”
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Elias
Lesson: Electrochemistry
Duration: 60 minutes
Grade Level: Advanced Science / Chemistry (IGCSE, A Level, IB)
Main Objectives:
By the end of this lesson, students should be able to:
1. Define electrochemistry and explain its importance.
2. Describe the difference between electrolytic and galvanic (voltaic) cells.
3. Write half-reactions and overall cell reactions.
4. Calculate standard electrode potentials and predict the direction of electron flow.
5. Understand practical applications of electrochemistry in everyday life.

Lesson Outline / Brief Notes:

1. Introduction to Electrochemistry (10 minutes)
Definition: Electrochemistry is the branch of chemistry that deals with the relationship between chemical reactions and electricity.
Key Concept: Redox reactions involve the transfer of electrons.
Real-life example: Batteries, electroplating, corrosion prevention.
2. Galvanic (Voltaic) Cells (15 minutes)
Composed of two half-cells connected by a salt bridge.
Oxidation occurs at the anode, reduction at the cathode.
Example: Daniell cell
Zn(s) | Zn2+(aq) || Cu2+(aq) | Cu(s)
Oxidation: Zn → Zn2+ + 2e−
Reduction: Cu2+ + 2e− → Cu
3. Electrolytic Cells (10 minutes)
Require an external power source to drive non-spontaneous reactions.
Example: Electrolysis of molten NaCl
At cathode: Na+ + e− → Na
At anode: 2Cl− → Cl2 + 2e-
4. Standard Electrode Potentials (10 minutes)
Electrode potential measures the tendency of a species to be reduced.
Example:
Zn2+/Zn: -0.76 V
Cu2+/Cu: +0.34 V
Predict electron flow: Electrons flow from Zn to Cu in a Daniell cell.
5. Applications of Electrochemistry (5 minutes)
Batteries (Li-ion, lead-acid)
Electroplating (silver plating, chromium plating)
Corrosion protection (galvanization)
Exercise (10 minutes)
1. Short Answer Questions:
a. Define electrochemistry.
b. Identify the anode and cathode in a zinc-copper galvanic cell.
c. Explain the difference between galvanic and electrolytic cells.
2. Calculation:
Given:
Zn2+/Zn: -0.76 V
Cu2+/Cu: +0.34 V
Calculate the standard cell potential of a Daniell cell.
3. Application Question:
Describe one practical application of electrochemistry in everyday life and explain how it works.
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Arda
Need homework help?
Hi! 😊 I graduated with honors and am happy to help with biology, chemistry, geography, drawing, English, Turkish, and learning to learn.
I'll explain everything calmly and clearly until you truly understand. Whether you're behind, struggling with planning, or just need some extra help, I'll adapt to your pace and learning style. Together, we'll make school a little easier (and more fun!).
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5
2 reviews
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Contact Dr. Pratibha
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by our Good-fit Instructor Guarantee
Private lessons
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Biochemistry
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Biotechnology
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Ibrahim
I am self motivated in tutoring for school courses and exams. My goal is to make students to understand scientific courses deeply. You'll learn how to solve problems with illustrations. To understand real case problems, at least one prior experienced need to widen your horizon to transform in logical definitions. If you are struggling with scientific courses , don't worry, I will do my best to assist by my eight-years in teaching experiences.
verified badge
Hridya
I can teach at the 10th Grade level or lower.
My classes are catered and modelled according to the students' needs. This class is for those students looking to either get a better understanding or more advanced knowledge on the subject to prepare well for exams and other endeavours.
I can teach either in an exam or selective topic driven way or in a general successive chapter way corresponding to the students' study material.
verified badge
Carla
You will be given tips, advice, including with exam technique, available for primary or secondary students.
We can go through exam practice papers, content from class you do not understand or revision. I am a student at the moment myself, so believe I can give an understanding and patient learning environment.
verified badge
Izhar
Facing problem in Chemistry? Does your teacher presume that you know every single basic concept and start teaching directly advanced concepts!!
Here is the solution. We'll be starting from the basic concepts and will be mastering over the advanced concepts gradually. You can simply tell for which topic you need more attention and time and which topics are your strengths (if any).

I am providing you a brief summary of our course which we generally follow but that doesn't mean that I am bound to just this much content. In case you have any doubt for any other specific topic related to the subject, you could always come up to me or you need any help in your assignments or projects, you are always welcome.

Here is a brief overview of the topics we'll be covering :

* Some basic Concepts of Chemistry
* Structure of Atom
* Classification of Elements and Periodicity in Properties
* Chemical Bonding and Molecular Structure
* States of Matter: Solid, liquid & gas
* Thermodynamics
* Equilibrium
* Redox Reactions
* Hydrogen
* s-block Elements (Alkali and Alkaline earth metals)
* p-block Elements
* d-block Elements
* f-block Elements
* Organic Chemistry: some basic principles and techniques
* Hydrocarbons
* Environmental Chemistry
* Solid State
* Solutions
* Electrochemistry
* Chemical Kinetics
* Surface Chemistry
* General Principles and Processes of Isolation Elements
* Coordination Compounds
* Haloalkanes and Haloarenes
* Alcohols, Phenols and Ethers
* Aldehydes, Ketones and Carboxylic Acids
* Organic Compounds containing Nitrogen
* Biomolecules
* Polymers
* Chemistry in Everyday Life

In case you have any query, please feel free to contact me.
Give yourself a chance for a better future.
All the best
verified badge
Alex
English is filled with nuances and I can help decode this anywhere from basic English to improving vocabulary and conversational skills with a Native Londoner.
Chemistry and other science and maths tutoring available: I can do all school levels and break down science and maths problems making it as simple as possible, also a lot of learning with question solving sets as.
verified badge
Safouene
Centralien engineer who has already given private lessons to high school and college students. Tutoring for scientific subjects, assistance in preparing for competitions, baccalaureate, patent.
Explanation of lessons + exercises + homework
verified badge
Arseniy
Hello, I'm Arseniy, I used to be a chemistry teacher in Ukraine before war started,
and I can help you with understanding chemistry at any level:

✅ Chemistry in High School:
-general understanding of the subject;
-everything you need to pass your exams.

✅ Chemistry for the University:
-General Chemistry (mostly first terms: chemical bonds, reactions, warmth, srochiometry, acids and bases, RedOx) for (bio)chemistry, biology, medicine and ingeneering students;
-Organic chemistry I+II (all degrees);
-Physical chemistry (kinetics, thermodynamics, electrochemistry) for all degrees.

✅About the teaching;

- the lessons can take part at my place, your place, or online;
-after the lesson the student receives homework and sometimes a PDF with additional information;
-we don't only learn during the lessons, but also inbetween.

✅About me:
-Originally from Ukraine;
-one year teacher at a private school in Duisburg, Germany;
-in the last 6 years I've helped over 100 students from different countries to understand chemistry and pass their exams.

I'm looking forward to receiving your messages here
verified badge
Sudipta
Dear all,

I am Mr. Sudipta and now residing in Amsterdam as a highly skilled migrant. I have extensive experience in teaching and research in biology and bioinformatics. My primary goal is to clear the concepts. I would love to hear from all who want to have a good grasp of biosciences.
verified badge
Shorena
I am an experienced science teacher. I am a student of electronic engineering. My profession includes mostly advanced science. So, I can help you improve your science skills, or start it from the beginning. I understand the fundamentals of teaching a subject and I am able to explain it to students as needed.
I have developed flexible, effective teaching tools and methods to help my students learn science in an effective way.
Contact me for more details.
verified badge
Gaspard
After two years in the MPSI then PSI* preparatory class, I am now a student at the Centrale Lille engineering school. Basically, I've been doing a lot more math and physics than I've slept in the past few years.
I have been teaching at all levels for a little over 3 years! But this is the first time I've tried this platform, can't wait to meet you!
In order for the course to be as constructive as possible, I will base myself on your expectations, the chapters that cause you problems, by reworking the basics so as to navigate thereafter between the different themes of the program. My classes are aimed at all students from college to terminale but also to first and second year students in physics and maths.
verified badge
Arthur
Hi, reader! :)

I am probably one of the most enthusiastic and versatile tutors in Amsterdam!

I have been tutoring students for over 10 years at various levels, with a focus on middle and high school students. Many of my students have been preparing for exams such as IB, AP, A-level, and IGCSE.

I hold several relevant degrees, including a PhD and MSc in Financial Justice from the University of Amsterdam, as well as a BS and MS in Engineering from the University of Pennsylvania (an Ivy League institution).

While my main area of expertise is math (ranging from simple arithmetic to advanced university-level calculus), I have also assisted students in preparing for high school level Chemistry and Economics exams.

What sets me apart as a UNIQUE tutor, in addition to my extensive background, is my PERSONAL approach to tutoring. I customize my teaching methods to suit each individual student. This includes the way I present material, work through problems, structure our sessions, and provide tailored feedback to help the student thrive. Additionally, I provide all of my students with my personal phone number, allowing them to contact me OUTSIDE OF SCHEDULED HOURS at NO ADDITIONAL COST if they are struggling while studying on the nights leading up to exams!

For me, tutoring is not just about covering the material; it is about tailoring the learning experience so that students can develop the necessary tools to excel in their courses and eventually become self-sufficient, no longer needing a tutor. :)
verified badge
Martijn
I graduated as a molecular biologist 20 years ago. Since then I have been making films in which I simplify complex biological concepts. I'm a big fan of biology and I think it would be fun to help you get a better grip on the matter. I can help you briefly with specific topics, or help you for a longer period of time to help you succeed, for example.
verified badge
Prashil
Welcome to my Foundation Course in Science and Maths, specially designed for primary, secondary, and high school students in Amsterdam. This course aims to build a strong foundation in these critical subjects, ensuring students excel academically and develop a genuine love for learning.

My teaching approach is focused on making learning enjoyable and engaging. I incorporate interactive activities and hands-on experiments to bring Science and Maths concepts to life. By involving students in these dynamic learning experiences, I aim to transform abstract concepts into tangible understanding. Each session is thoughtfully designed to keep students interested and motivated, minimizing fatigue and maximizing retention.

I believe in simplifying complex topics, breaking them down into easy-to-understand segments. This approach helps students grasp and retain challenging concepts with ease. Techniques such as mnemonic devices, visual aids, and real-life examples are integral to my method, ensuring that formulas and concepts are not just memorized, but truly understood.

Regular assessments are conducted to track student progress and identify areas needing improvement. These tests also prepare students for their school exams, ultimately boosting their confidence. I understand the importance of keeping parents informed and involved in their child’s academic journey. That's why I provide weekly reports detailing their child’s progress, strengths, and areas for improvement. This continuous feedback loop ensures that parents are aware of their child’s development and can support their learning at home.

Encouraging words and positive feedback are integral to my teaching method. I strive to build students' self-confidence and to instill a love for learning through positive reinforcement. Setting achievable goals for each student, I celebrate their successes and motivate them to strive for excellence. This goal-setting approach not only drives academic success but also fosters a sense of accomplishment and self-worth.

As a tutor, my satisfaction comes from seeing my students excel and reach their full potential. My ultimate goal is to empower students with the knowledge and skills they need to succeed in Science and Maths. I am always available to support my students, offering additional help and resources as needed to ensure their success.

I foster an open environment where students feel comfortable asking questions, no matter how simple they may seem. This curiosity drives deeper understanding and encourages a proactive approach to learning. By incorporating games, puzzles, and interesting activities, I ensure that learning remains fun and engaging, keeping students excited about the subjects.

Join my Foundation Course in Science and Maths and watch your child develop a strong foundation, confidence, and a genuine love for these essential subjects. Let’s work together to achieve academic excellence and make learning a fun and rewarding experience. “Excel in Subjects, Soar in Confidence!”
verified badge
Elias
Lesson: Electrochemistry
Duration: 60 minutes
Grade Level: Advanced Science / Chemistry (IGCSE, A Level, IB)
Main Objectives:
By the end of this lesson, students should be able to:
1. Define electrochemistry and explain its importance.
2. Describe the difference between electrolytic and galvanic (voltaic) cells.
3. Write half-reactions and overall cell reactions.
4. Calculate standard electrode potentials and predict the direction of electron flow.
5. Understand practical applications of electrochemistry in everyday life.

Lesson Outline / Brief Notes:

1. Introduction to Electrochemistry (10 minutes)
Definition: Electrochemistry is the branch of chemistry that deals with the relationship between chemical reactions and electricity.
Key Concept: Redox reactions involve the transfer of electrons.
Real-life example: Batteries, electroplating, corrosion prevention.
2. Galvanic (Voltaic) Cells (15 minutes)
Composed of two half-cells connected by a salt bridge.
Oxidation occurs at the anode, reduction at the cathode.
Example: Daniell cell
Zn(s) | Zn2+(aq) || Cu2+(aq) | Cu(s)
Oxidation: Zn → Zn2+ + 2e−
Reduction: Cu2+ + 2e− → Cu
3. Electrolytic Cells (10 minutes)
Require an external power source to drive non-spontaneous reactions.
Example: Electrolysis of molten NaCl
At cathode: Na+ + e− → Na
At anode: 2Cl− → Cl2 + 2e-
4. Standard Electrode Potentials (10 minutes)
Electrode potential measures the tendency of a species to be reduced.
Example:
Zn2+/Zn: -0.76 V
Cu2+/Cu: +0.34 V
Predict electron flow: Electrons flow from Zn to Cu in a Daniell cell.
5. Applications of Electrochemistry (5 minutes)
Batteries (Li-ion, lead-acid)
Electroplating (silver plating, chromium plating)
Corrosion protection (galvanization)
Exercise (10 minutes)
1. Short Answer Questions:
a. Define electrochemistry.
b. Identify the anode and cathode in a zinc-copper galvanic cell.
c. Explain the difference between galvanic and electrolytic cells.
2. Calculation:
Given:
Zn2+/Zn: -0.76 V
Cu2+/Cu: +0.34 V
Calculate the standard cell potential of a Daniell cell.
3. Application Question:
Describe one practical application of electrochemistry in everyday life and explain how it works.
verified badge
Arda
Need homework help?
Hi! 😊 I graduated with honors and am happy to help with biology, chemistry, geography, drawing, English, Turkish, and learning to learn.
I'll explain everything calmly and clearly until you truly understand. Whether you're behind, struggling with planning, or just need some extra help, I'll adapt to your pace and learning style. Together, we'll make school a little easier (and more fun!).
Good-fit Instructor Guarantee
favorite button
message icon
Contact Dr. Pratibha