Kelechi Chioma
Experience interesting Chemistry and Biology Teacher with eye opening teaching approach that helps learners grasp the subject




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Kelechi Chioma
Bachelors degree
/ 55 min
Kelechi Your chemistry tutor
I'm Kelechi Chioma, A Biology and Chemistry tutor with over 24 years of experience. I hold a Bachelor's degree in Biochemistry. My Specialties include tailor-made learning approach, Exam focus teaching, and real world application of concepts. I work with student across all strata including primary, secondary and tertiary levels. I provide engaging sessions to enhance understanding. For students with special needs, I ensure a supportive and inclusive learning environment. I encourage a lot of questioning and practice especially of past exam papers. I push students to also study on their own. devoting study habits and methods for students and learners. I source for the best materials whether online or offline that will help students grasps the concepts better and quicker. Learners are motivated. Lets ace Biology and chemistry together.
Kelechi graduated from Nnamdi Azikiwe University

Specialities of your chemistry tutor
International Baccalaureate (IB)
GCSE (UK)
Common Core State Standards - CCSS (USA)
State-Specific Standards (USA)
Visual learning
AI modules
Summary
Podcast
Quiz
Learnings
Flashcard
Spotlight
Zero Risk Guaranteed
15-days refund
Free tutor swap
No cancel fee
1-yr validity
24/7 support
Types of learners for chemistry class
Middle School students
Anxiety or Stress Disorders
College students
ASD
Elementary School students
Learning Disabilities
Home schooled
High School students
ADHD
Chemistry class overview
My tutoring method is interactive, engaging and exam focused, providing personalised tutoring in various chemistry subjects like Chemical bonding, Organic Chemistry and many more. I use a blend of of tech tools, like online collaboration platforms, digital simulations and interactions. I make learning dynamic and hands-on. Following a structured curriculum, I ensure students grasp the complex concepts through a mix of theory and practical applications. I know how to make the hard things simple and explain the complicated aspects of each topic. With over 500 students thought both online and physical I bring to bear over 24 years teaching experience. my hands-on teaching style ensures the deep understanding of the subjects, leading to improved academic performance and exam success. Leaving my students with subject knowledge they will use for a life time.
Your chemistry tutor also teaches
Chemistry
Organic Chemistry
Chemical Reactions
Physical Chemistry
Inorganic Chemistry
Analytical Chemistry

Chemistry concepts taught by Kelechi
The Student and Tutor worked through a series of advanced chemistry problems covering topics such as thermochemistry, intermolecular forces, density, stoichiometry, solution chemistry, and gas laws. They collaboratively solved problems involving calculations for enthalpy of neutralization, percentage yield, partial pressures, and the number of atoms in a hydrate. At the end of the session, the Tutor and Student discussed starting biology basics before the Student's official class begins in August.
Mass from Molarity and Volume
Calculating Atoms in Hydrate Compounds
Partial Pressure (Dalton's Law)
Percentage Yield in Reactions
Density and Volume Displacement
Identifying Intermolecular Forces (IMFs)
Enthalpy of Neutralization (ΔH)
The Student and Tutor reviewed various advanced chemistry concepts and problem-solving techniques, including theoretical yield, molecular formula determination from percentage composition and gas density, writing ionic equations, calculating molar concentrations, and titration. They also covered enthalpy changes from reactions and bond enthalpies, and extensively discussed the definitions and identification of oxidation-reduction reactions and agents. The next session was scheduled to continue their review.
Titration Calculations
Redox Reactions: Oxidation & Reduction Agents
Enthalpy Change (ΔH) & Heat Released
Molar Concentration of Ions in Mixed Solutions
Ionic & Net Ionic Equations
Empirical & Molecular Formulas from Composition
Limiting Reagent & Theoretical Yield
The Student and Tutor reviewed various chemistry concepts, including molecular geometry, VSEPR theory, polarity, and periodic trends such as ionic radius, lattice energy, melting points, ionization energy, and electron affinity. They worked through specific examples provided by the Student and clarified conceptual misunderstandings related to electron domains, bond angles, and the reasons behind periodic trends. The Tutor confirmed availability to assist the Student with biology in the upcoming semester, addressing the Student's future academic plans.
VSEPR Theory: Molecular Geometry & Polarity
Isoelectronic Series & Ionic Radius Trends
Melting Points: Lattice Energy & Ionic Radius
Ionization Energy (IE)
Electron Affinity (EA)
The Student and Tutor worked through several advanced chemistry problems, including calorimetry calculations, bond enthalpy determinations, photon energy and wavelength calculations, and applications of Hess's Law. They focused on correcting the Student's approach to these problems and clarifying formulas and concepts. The Student has an upcoming test on these topics and plans to engage in more practice.
Calorimetry: Calculating Heat Transfer (Q) and Enthalpy Change (ΔH)
Bond Enthalpies: Estimating Enthalpy Change (ΔH)
Photon Energy and Wavelength Calculations
Hess's Law: Combining Reactions for ΔH
The Tutor and Student reviewed various chemistry concepts including dilution, titration calculations, percentage composition, and hydrate formulas. They practiced solving problems related to these topics, with a focus on balancing chemical equations and applying relevant formulas like M1V1=M2V2 and N=MV. The next session is scheduled for Monday afternoon to continue practice.
Dilution Calculations (M₁V₁ = M₂V₂)
Neutralization Reactions and Titration
Percent Composition by Mass
Calculating Atoms in Hydrated Compounds
The Student and Tutor reviewed key organic chemistry concepts, focusing on identifying functional groups like hydroxyl, carboxyl, amino, and carbonyl, and their associated organic compounds. They practiced recognizing these groups and discussed their presence in biological macromolecules. The session also covered essential biochemistry topics, including enzymes, oxidation-reduction, and an overview of glycolysis and the Krebs cycle in preparation for an upcoming exam.
Glycolysis and the Krebs Cycle: Cellular Energy Production
Oxidation-Reduction (Redox) Reactions
Organic Functional Groups: Identification & Macromolecules
Enzymes: Biological Catalysts
Tools & techniques used by chemistry tutor
Digital whiteboard
Interactive chemistry lessons
Parent feedback
Pets are welcomed
Record lessons
Mobile joining
Weekend lessons

Chemistry tutors on Wiingy are vetted for quality
Every tutor is interviewed and selected for subject expertise and teaching skill.
