What are the different types of JC Chemistry tuition classes available at your centre?

We have 3 modes of learning for students to choose from: weekly physical classes at Bishan; weekly online lessons via Zoom; and on-demand video lessons.

Are you the only Chemistry tutor conducting the classes or do you engage other tutors to do that?

Please be rest assured that I conduct all my classes personally and I do not engage other tutors to teach at my centre.

How well do your students perform after attending your H2 Chemistry tuition classes?

Most of my students showed improvements by at least 3 grades and more than 80% have attained distinction for A Levels. The earlier the students join my classes, the more confident I am in improving their grades.

What is your class size at Bishan?

Usually the class size is around 10 to 12 students. Max class size is 16 pax.

Is there makeup lesson if I miss a class?

Yes makeup lesson is available in the same week subject to availability. If makeup class is not possible, the student can view the recorded video lessons at Google Classroom.

Do you have trial lesson available? How much is it?

Yes we do. Fees for trial lesson are for Bishan class and for Zoom online class.

Does your centre offer O Level chemistry tuition? Do you teach IB / IP chemistry tuition? How about H1 Chemistry?

Chemistry Guru specialises in H2 Chemistry for JC1 and JC2 or IP Year 5 and IP Year 6 students only. Find out all the information about A Level H2 Chemistry and the detailed comparison between H1 and H2 Chemistry. We do not conduct lessons for H1 Chemistry, O Level Chemistry, IB Chemistry or IP Chemistry at IP Year 3 and IP Year 4.

A Level Chemistry 2017 Paper 1 Question 6 Solution - Exclusive

In this exclusive video we want to discuss the suggested solution for A Levels Chemistry (H2 Chemistry) 2017 Paper 1 Question 6.

Let Chemistry Guru, Singapore's top JC Chemistry tuition centre, guide you through this question.

2017 A Level H2 Chemistry Paper 1 Qn6 Question

Topic tested is on Ionic Equilibria and definitions of Bronsted-Lowry Acid and Base, and Lewis Acid and Base.

Bronsted-Lowry Theory of Acids and Bases is based on proton transfer:

A Bronsted acid is defined as a proton or H⁺ donor, while
A Bronsted base is a proton or H⁺ acceptor.

Lewis Theory of Acids and Bases is based on electron pair transfer:

A Lewis acid is an electron pair acceptor, while
A Lewis base is an electron pair donor.

So based on these definitions we can compare the options and see which of these species can function as both a Lewis base and Bronsted-Lowry acid.

2017 A Level H2 Chemistry Paper 1 Qn6 determine lewis base and bronsted acid

Therefore B is the best answer as H₂O can donate lone pair to form H₃O⁺ (Lewis base) and it also also donate H⁺ to form OH^- (Bronsted acid).

Check out this video for the question and the suggested solution!

Topic: Ionic Equilibria, Physical Chemistry, A Level Chemistry, Singapore

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A Level Chemistry 2017 Paper 1 Question 6 Solution - Exclusive

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