Uncategorised Archives - Mr Khemistry


Chemistry in Daily life

Chemistry in Daily life Plastics is one of the most important inventions Chemistry has made in 19th century. It is so pervasive in our lives that we seldom stop to think just how much we depend on it. Have a look around your house, how many things are made of plastics? Try going to the […]

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Best JC Chemistry Teacher

The best JC chemistry teacher This is a continuation of a series of posts to remind myself of good teaching strategies that i can use to engage and hold students’ interest. This second idea from the book “Made to Stick” by Chip and Dan Heath talks about the curiosity gap, a gap which happens when […]

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Changes in H2 Chemistry syllabus 2017 – part 1

Theories of acids and bases *New! Arrhenius theory – acid produce H+ in water, base produces OH– in water. Bronsted Lowry theory – acid produces H+, base accepts H+. Conjugate pair concept. Lewis theory – acid as electron pair acceptor, base as electron pair donor. Gases: Vm = 22.7 dm3 at stp (1 bar, 273 […]

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