Chemistry (Organic Chemistry) for university students

From 26 £ /h

I cover theoretical concepts and apply them in practice through teaching exercises. I help develop critical and scientific thinking so students can independently understand and solve the exercises. I provide feedback and tips on how to solve complex problems in organic chemistry.

Extra information

Online Teaching lessons (Zoom or Teams)

Location

Online from Portugal

About Me

I have a degree in industrial chemistry and a master's degree in chemistry. I am interested in almost all subjects related to chemistry. My study method consists of understanding the theory in detail and then applying it in exercises.

In addition, I help students plan and prepare academic texts, such as reports, dissertations, and presentations, among others.

Education

Master in Chemistry (17/20) from the University of Lisbon - IST and Bachelor in Science in Industrial Chemistry (16/20) from the University of Beira Interior. I also have experience in robotics and mechatronics.

Experience / Qualifications

- more than five years in research activities;
- around four years teaching chemistry and organic chemistry (more than 20 students)

Age

Adults (18-64 years old)

Seniors (65+ years old)

Student level

Beginner

Intermediate

Advanced

Duration

60 minutes

The class is taught in

English

Portuguese

Skills

Chemistry

Organic chemistry

Availability of a typical week

(GMT -05:00)

New York

Online via webcam

Mon

Tue

Wed

Thu

Fri

Sat

Sun

00-04

04-08

08-12

12-16

16-20

20-24

Kevin

5.0

(6)

► Online Mathematics, Physics & Chemistry Tutor from Switzerland
► GCSE, IGCSE, A-Level, IB & International School Support
I completed my Master’s degree in Business Information Systems at a Swiss University of Applied Sciences, where my main academic focus was strongly connected to Mathematics, Physics, analytical thinking and problem-solving. This technical background shaped the way I teach today: clearly, logically and with a strong focus on real understanding.
► EXTENSIVE EXPERIENCE WITH GCSE, IGCSE, A-LEVEL, IB & INTERNATIONAL SCHOOL STUDENTS
With many years of teaching experience, I have successfully supported students from prestigious schools and highly demanding academic programmes, helping them strengthen their understanding, master exam techniques and achieve excellent progress in Mathematics, Physics and Chemistry.

► Exam Preparation & Academic Support

► GCSE & IGCSE Mathematics, Physics and Chemistry
I help students build a strong foundation through clear explanations, topic-by-topic revision and carefully selected exam-style practice. My lessons focus on understanding the core ideas, improving calculation skills, avoiding common mistakes and preparing students confidently for their final exams.

► A-Level Mathematics, Further Mathematics, Physics and Chemistry
A-Level subjects require deeper thinking, strong problem-solving ability and excellent exam technique. I support students with advanced concepts, structured revision, challenging practice questions and university preparation, especially for demanding fields such as Engineering, Medicine, Computer Science, Economics and Natural Sciences.

► International Baccalaureate — IB Mathematics, Physics and Chemistry
I provide structured support for both Standard Level and Higher Level students. My focus is on deep conceptual understanding, clear mathematical reasoning, scientific explanation and strong exam performance. Students learn how to approach complex IB-style questions with confidence and precision.

► International School Programmes
I support students following international, bilingual and private school curricula. Since every school can have slightly different expectations, I adapt my teaching to the student’s syllabus, textbook, teacher requirements and exam format, ensuring that the lessons are directly useful for school success.

► University & Foundation Courses
For older students, I offer support in Mathematics, Physics, Chemistry, Statistics and technical modules. I help students understand difficult theory, work through assignments, prepare for exams and strengthen the analytical skills needed for university-level study.

► How I Teach
► I focus on understanding, not memorisation.
I explain concepts step by step until the student truly understands why a method works.
► I adapt every lesson to the student.
Every student learns differently, so I adjust my teaching style, pace and examples individually.
► I simplify difficult topics.
Complex problems become easier when they are broken into clear, logical steps.
► I close knowledge gaps.
I identify missing foundations and rebuild them carefully so the student gains confidence.
► I train exam technique.
Students learn how to read questions properly, avoid common mistakes and solve problems under exam conditions.

► 100% COMMITMENT TO YOUR SUCCESS
With clear guidance, focused practice and a personalized learning strategy, I am fully committed to helping you understand deeply, improve consistently and achieve your strongest possible results.

► My Goal
My goal is not only to improve grades, but to help students become confident, independent and motivated learners. With the right guidance, Mathematics, Physics and Chemistry become clear, logical and much easier to master.
► Subjects: Mathematics, Physics, Chemistry
► Levels: GCSE, IGCSE, A-Level, IB, International School, Foundation Courses, University Modules
► Focus: Understanding, confidence, exam success and long-term academic progress.

Raef

5.0

(6)

Experienced teacher, a graduate of the Faculties of Science and Medicine offers private tutoring in Mathematics, Analysis, Matrix, Statistics, Algebra, Physics, Chemistry, and Biology, following French curriculums or International (in English), or American curricula, for high school seniors, students preparing for the Brevet exam or Terminale Francais, competitive entrance exams, and university entrance exams.
I can also assist students enrolled in CNED (enseignement a distance) and those preparing for the SAT.
Lessons take place either at the student's home or online using a modern, sharing board equipped with writing tools where I can collaborate with the student to write and correct assignments by displaying them directly, in addition to Zoom for communication (a very convenient method, just like at home).
My high school seniors have achieved high honors (Très bien, Bien, and Excellent).
Contact me for more details.

Mavi

5.0

(6)

I am Mavi, a physics engineer working at an aerospace company.
I have been teaching private lessons at the primary, secondary, high school, and university preparatory levels for 11 years. I teach mathematics, physics, chemistry, and science. I have a good command of the curricula of IB, IGCSE, American, Hong Kong, and international schools.

Additionally, I hold the position of president at the Astronomy Society, where I foster my students' interest in astronomy and science beyond the lessons. I prepare the learning environment by incorporating experiments and exploration, moving away from rote education. I often bring experimental materials to class, aiming to make learning memorable through hands-on experiments.

As an educational mentor, I approach my students as if they were my siblings, valuing creativity. I have a deep passion for mathematics, physics, and science. I am dedicated to helping students understand and learn because life encompasses both SCIENCE and ART. The more people I can inspire to know, understand, and love mathematics, physics, and chemistry, the more proud I am.

Are you curious about how nature works?

Let's explore together!

5.0

(6)

Chemistry Calculations Masterclass | IGCSE & IB

### Master Chemistry Calculations and Maximize Your Exam Marks

Do you understand Chemistry theory but struggle when you face calculation questions?

Do you lose marks because of **formula selection, unit conversions, mathematical steps, significant figures, or poorly structured working**?

This masterclass is designed specifically for **IGCSE and IB Chemistry students** who want to build strong confidence in quantitative Chemistry and improve their exam performance.

I’m **Dr. Basil**, a Chemistry tutor with **10+ years of experience teaching international curricula**, including IGCSE, IB, GCSE, A-Level, and American Chemistry. With a background in Pharmacy and Quality Management, I use a systematic, step-by-step approach that helps students understand not only *how* to calculate the answer, but *why* each step is required.

### What You Will Master

**Core Quantitative Chemistry – IGCSE & IB**

• The mole concept and Avogadro's constant
• Relative atomic mass and relative formula mass
• Molar mass calculations
• Balanced equations and stoichiometric calculations
• Limiting reactants
• Percentage yield and atom economy
• Empirical and molecular formulae
• Gas volume calculations
• The ideal gas equation
• Concentration calculations
• Dilution calculations
• Titration calculations
• Reacting masses and volumes

**IB Chemistry – Additional Skills**

• Uncertainty calculations
• Percentage uncertainty and percentage error
• Significant figures and decimal places
• Data processing and evaluation
• Uncertainty in experimental results

### How We Work

Rather than simply memorizing formulas, you will learn a **repeatable method for solving Chemistry calculations**:

**Understand → Identify → Choose the equation → Substitute → Calculate → Check → Give the correct units**

We will work through progressively more challenging problems and use **IGCSE/IB-style exam questions and past papers** to develop speed, accuracy, and exam technique.

### This Masterclass Is Ideal For Students Who:

✓ Struggle with Chemistry calculations
✓ Understand the theory but cannot apply it to questions
✓ Make frequent calculation or unit-conversion errors
✓ Find stoichiometry and mole calculations difficult
✓ Need help with titration and concentration problems
✓ Want to improve their exam technique
✓ Are preparing for IGCSE or IB Chemistry exams
✓ Want structured practice and targeted feedback

### What You Can Expect

✓ Clear, step-by-step explanations
✓ Personalized instruction based on your current level
✓ Extensive calculation practice
✓ Exam-style questions and past-paper practice
✓ Identification and correction of recurring mistakes
✓ Guidance on showing working clearly to earn method marks
✓ Strategies for checking whether your answer is reasonable
✓ Focused preparation for IGCSE and IB examinations

**The goal is not simply to memorize Chemistry formulas — it is to develop the confidence and problem-solving skills to approach unfamiliar calculation questions successfully.**

Book a lesson and let's turn Chemistry calculations from a source of lost marks into one of your strongest areas.

Robert

5.0

(6)

As a Franco-Belgian teacher, I offer private lessons in physics, chemistry and biology for secondary and higher levels. I specialize in secondary level up to 5th year Belgian.

I travel, if necessary, to your home in the Brussels region as well as in Walloon and Flemish Brabant, with a minimum course duration of 2 hours. With extensive experience, I offer numerous exercises to consolidate knowledge. Distance learning is also possible via platforms such as Skype, Facebook, etc. For students in France, lessons are done exclusively remotely.

Do not hesitate to contact me to organize your lessons according to your needs and availability. I am here to help you strengthen your skills in these subjects in an effective and personalized way. Courses tailored to your needs will allow you to progress quickly.

Kelvin

5.0

(6)

These lessons are best for; IB, IGCSE, GCSE, EDEXCEL, CAMBRIDGE CHECKPOINT and CAMBRIDGE O'LEVELS

PHYSICS contents :
•Measuring quantities
•Weight and Mass
•Density, Mass and Volume
•Motion
•Forces
•Light and it's properties properties
•Gas Laws
•Thermal Dynamics
•Momentum
•Machines
•Waves
•Sound
•Electromagnetic Spectrum
•Electricity
•Magnetic induction
•Transformer
•Radiation

Topics to be covered in CHEMISTRY are:
•Atomic structure
•Chemical Bonding
•Electronic configuration
•The Periodic Table and the Trends
•Extraction of Metals
•Thermal Decomposition
•Oxides
•Acids Bases and Salts
•Mole concepts
•Chemical Reactions
•Chemical Energetics
•Redox Reactions
•Non Metals
•Chemistry of the Environment
•Organic Chemistry

Topics to be covered in BIOLOGY are:
•Characteristics and classification of living organisms.
•Magnification of cells
•Types of Cells
•Cells and Solution Concentrations •Reproduction in Plants
of Animals
•Genetic Recombination
•Nutrition in Animals
•Plant Nutrition
•Heredity
•Anomalies in Animals and Plants
•Excretion in Animals
•Endocrine System
•Immune System
•Nervous System
•Adaptation of living organisms on their environment
•Reproduction in Animals
•Animal feeding levels

NOTE📌
Each class session takes 60 minutes duration. Within this time, a student should have COVERED ALL the class OBJECTIVES.
All students are required to ASK QUESTIONS for CLARIFICATIONS as the lesson PROGRESSES.
AIM: To help you pass Exams with ease.

Prashil

5.0

(6)

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!”

Dr.

5.0

(6)

Hello, I'm Pratibha, a PhD-qualified Biology and Chemistry tutor based in the Netherlands.

I have more than 10 years of teaching experience at secondary and university level. I help students understand Biology, Biochemistry, Biotechnology, Pharmacology and Chemistry, so they can do well in exams and feel confident in the subject. I teach online, and students from the Netherlands, Europe and the rest of the world are welcome.

What I teach
Secondary and pre-university: Biology and Chemistry for IB, A-Level, IGCSE, AP and other international curricula
University: Biochemistry, Molecular Biology, Immunology, Genetics, Microbiology, Zoology and Biotechnology, all the five branches of Chemistry
Exam preparation: past papers, exam technique, revision plans and last-minute support
Homework and coursework help: including lab reports, essays and internal assessments

About my background
PhD in Zoology, MSc in Biotechnology (Core subject- Chemistry) and MSc in Zoology (Gold Medalist)
Former Assistant Professor, with experience teaching both school and university students
Published researcher in preclinical pharmacology, with a recent poster presentation at AIBIA2025 in Utrecht
Experience guiding student research projects and designing lab activities that link practical work to theory
Fluent in English, with working knowledge of French and native-level Hindi

How my lessons work
Concepts first: I explain the "why" behind each topic, so you are not just memorising.
Tailored to you: Every student starts with a short chat about their level, goals and syllabus, and I build the lessons from there.
Interactive: I use diagrams, worked examples, practice questions and digital materials, and I give clear feedback after each lesson.
Exam-focused: We practise how to read questions, structure answers and manage time under pressure.
Supportive and patient: All levels are welcome, from students who are struggling to those aiming for top grades.

Who I can help
Students who find Biology or Chemistry difficult and want to build confidence
IB and A-Level students aiming for top grades
University students who need help with Biochemistry, Molecular Biology or Immunology
Students who need help with revision, past papers or coursework

Book a lesson. Message me with your level, subject, exam board and goals, and we will plan your first lesson together. I look forward to helping you succeed.

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.

Iskander

5.0

(6)

I hold a Doctorate in Pharmacy and 2 Masters degrees from the University of Paris V René-Descartes.
Since the beginning of my higher education, and since I established myself as a freelancer after 10 years of managerial career in the pharmaceutical industry, I have been used to regularly giving private lessons to pupils and students of all levels, Primary, Secondary and Higher, supporting them until they pass their exams.
The main disciplines in which I support students are essentially scientific.
The perspectives provided are transdisciplinary.

Thelma

5.0

(6)

Struggling with Chemistry? Let's work towards better grades together!
Hi, I'm Thelma, and I offer supportive online mathematics lessons for students studying GCSE, IGCSE, AS and A-Level Chemistry.
Whether you're struggling with the basics, finding algebra confusing or preparing for an important examination, my lessons are designed around your learning needs and goals.

• We will focus on;

📘 GCSE & IGCSE Chemistry
We can work on:
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📗 AS & A-Level CHEMISTRY
Topics include:
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🎯 Exam Preparation
We will practice exam-style questions, review challenging topics, identify areas for improvement and work through solutions step by step. Where appropriate, we will use past papers from your examination board, including Pearson Edexcel, AQA and OCR.

💻 What to expect in my lessons
• Clear, step-by-step explanations
• Interactive online teaching and worked examples
• Practice questions suited to your level
• Lessons tailored to your goals
• Support with revision and homework questions

Whether you need help understanding a topic or want structured exam preparation, we can focus on the areas where you need the most support.
Ready to improve your understanding of Chemistry? Book a lesson, tell me your exam board and the topics you find difficult, and let's get started!

Tony

5.0

(6)

I graduated with a perfect 45/45 in the IB Diploma and achieved 7/7 in both Biology HL and Chemistry HL. I also have over 3 years of teaching experience.
In this class, I’ll share the strategies, techniques, and exam approaches that helped me achieve those results.
This class is focused on more than simply reviewing the syllabus. We will focus on how to approach IB science questions, apply your knowledge effectively, maximize marks, and consistently perform at a 6–7 level.

What we will focus on:
- How to approach difficult IB-style questions
- Strategies for moving from a 5 to a 6 or from a 6 to a 7
- How to understand command terms and what questions are really asking
- How to structure answers to maximize marks
- Data analysis, graphs, calculations, and experimental questions
- Common mistakes that cost students marks
- Time management and exam strategy
- Challenging 6–7 level Biology HL and Chemistry HL questions

We will work through challenging IB-style Biology and Chemistry questions step by step, focusing not only on what the correct answer is, but why the markscheme awards marks for it and how to recognize similar questions in an exam.
Whether you are currently working toward a 6, trying to push from a 6 to a 7, or simply want to become significantly stronger in IB Biology HL or Chemistry HL, this class will give you a clear and practical strategy for maximizing your exam performance.

Fairy

5.0

(6)

Are you looking for a science tutor who can make difficult topics easier to understand? I provide personalized Science lessons for students who want to improve their understanding, build confidence, complete schoolwork, or prepare for exams.

I have a Bachelor’s Degree in Secondary Education major in Physical Science and several years of teaching and tutoring experience. I have taught Biology, Chemistry, Physics, Earth Science, and other General Science topics to secondary and high school students.

My lessons are student-centered and adapted to your learning level and goals. I don't simply give you the answers—I guide you through the concepts step by step so you understand why and how things work.
During our lessons, we can work on:
• Biology and life processes
• Chemistry and chemical reactions
• Physics and problem-solving
• Earth and environmental science
• Scientific concepts and terminology
• Homework and assignments
• Review and exam preparation
• Practice questions and application exercises

I use clear explanations, real-life examples, visual aids, guided practice, and questions that encourage students to think critically. If a topic seems confusing, we'll break it down into smaller and easier parts until you feel comfortable with it.

Every lesson is personalized to you. Whether you need help catching up with your classes, preparing for an upcoming examination, or simply want to become more confident in Science, I would be happy to help you reach your goals.

Nirajan

5.0

(6)

**Master Grade 6-10 Physics with Confidence – Understand Concepts, Solve Numericals, and Excel in Exams!**

Are you finding Physics difficult or struggling with numerical problems, scientific formulas, and complex concepts? My Grade 10 Physics classes are designed to make learning Physics simple, interesting, and enjoyable through clear explanations, practical examples, and step-by-step problem-solving techniques.

**About Me**

My name is **Nirajan Adhikari**, and I hold a Bachelor of Science in Physics and a Master of Science in Physics from Kathmandu University, Nepal. With my strong academic background in Physics and experience in teaching, I focus on helping students understand scientific principles rather than simply memorizing formulas.

**What Will You Learn?**

My lessons cover essential Grade 10 Physics topics, including:

- **Force and Motion:** Newton's laws, acceleration, momentum, gravity, and equations of motion.
- **Work, Energy, and Power:** Kinetic energy, potential energy, conservation of energy, and numerical applications.
- **Heat and Temperature:** Heat transfer, specific heat capacity, thermal expansion, and related calculations.
- **Light and Optics:** Reflection, refraction, lenses, mirrors, and ray diagrams.
- **Electricity:** Electric current, voltage, resistance, Ohm's law, electrical circuits, and power.
- **Magnetism:** Magnetic fields, electromagnets, and electromagnetic effects.
- **Waves and Sound:** Wave properties, frequency, wavelength, and sound propagation.
- **Numerical Problem-Solving:** Formula selection, unit conversions, mathematical calculations, and examination techniques.

Topics will be adjusted according to your school syllabus and examination requirements.

**My Teaching Method**

I believe every student can succeed in Physics with the right explanation, guidance, and practice.

My lessons include:

✅ Simple explanations of difficult Physics concepts.

✅ Real-life examples to understand scientific principles.

✅ Step-by-step solutions to numerical problems.

✅ Diagrams, illustrations, and interactive discussions.

✅ Practice questions, homework support, and regular assessments.

✅ Past examination questions and revision strategies.

✅ Personalized lessons based on individual learning needs.

**Who Can Join?**

These classes are ideal for Grade 6-10 students following A level curriculum, GCSE, IGCSE, or other equivalent secondary school curricula.

Whether you need help understanding basic concepts, improving your grades, completing assignments, or preparing for final examinations, I will support you throughout your learning journey.

**Why Choose My Classes?**

As a postgraduate in Physics, I bring strong subject knowledge, analytical thinking, and a structured teaching approach to every lesson. I explain complicated concepts in a simple and understandable way, helping students develop confidence and independent problem-solving skills.

My goal is not just to help you pass your examination but to build a strong foundation in Physics for your future studies.

**Start Your Physics Learning Journey Today!**

Join my Grade 10 Physics classes and discover how interesting and understandable Physics can be.

**Learn the concepts. Practice the numericals. Build confidence. Achieve better results!**

Grace

5.0

(6)

Interactive K-12 Mathematics & Grades 7–12 Science Lessons

Is your child struggling with complex math formulas, needing homework support, or preparing for major science exams?

I am a TRCN-licensed Educator, Tutor Success Manager, and STEM Specialist with over a decade of experience helping students build confidence and achieve top grades. With a First Class / 2:1 degree in Information Technology, a Post Graduate Diploma in Education (PGDE), and advanced MSc IT coursework, I deliver structured, visual, and highly interactive online lessons customized to every student’s learning pace.

What We Cover in This Class:

Mathematics (Grades 1–12): Foundational arithmetic (CPA approach), fractions, word problems, algebra, indices, logarithms, coordinate geometry, linear graphs, quadratic equations, and trigonometry.

Sciences (Grades 7–12): Integrated/General Science, Physics (Scalar and Vector Quantities, Kinematics, Mechanics, Energy Transformations, Waves), Chemistry, and Biology.

How Lessons Are Taught:

Conceptual Clarity over Rote Learning: I break down abstract topics into easy-to-understand visual steps so students master the why behind every formula.

Interactive Digital Classroom: We utilize live interactive whiteboards (OpenBoard, Miro) and dynamic practice tools (Google Forms, Quizizz) to keep students fully engaged throughout every session.

Tailored Pace & Regular Feedback: Lessons are customized to match school curricula, reinforce class topics, support with homework, and provide parents with clear progress updates.

Whether your student needs early math intervention or advanced high school science mastery, I am here to make learning intuitive and rewarding.

Book a trial session today, and let’s unlock your student's potential in Math and Science!

Jean

5.0

(6)

Are you stuck on a chapter, do you want to practice for the baccalaureate exam, or do you have some catching up to do? I can help you online, with a clear method.

MY JOURNEY
- Graduated with honors from the baccalaureate
- 4 years of studying fundamental computer science in Russia, which deepened my mathematical knowledge
- Background in software engineering
- Bachelor's degree in psychology (2015): it helps me understand how each student learns

MY METHOD
- First lesson: I diagnose your weaknesses and the real cause of the blockage
- Each course is built based on this diagnosis
- For each chapter: lessons, examples, then exercises of increasing difficulty
- Practice with typical baccalaureate exam questions and expected writing style
- Work plan adapted to your pace

RESULT
One of my students obtained the highest honors in the 2026 baccalaureate exam, with a score of 17 in Mathematics.

WHAT I WORK ON WITH YOU
Analysis (sequences, limits, differentiation, integrals), probability, geometry, and preparation for the baccalaureate exams.

First lesson free and without obligation, to assess your level.

Write to me indicating your level, your difficulties and your availability.