Mole Concepts is considered by many students to be one of the toughest topic in GCE O Level Examinations as well as GCSE Examinations (according to a close friend which is coaching under GCSE). In fact, students tends to give up the whole chapters when they go for their preliminary as well as GCE O Level papers. Actually, Mole Concepts and Chemical Calculations are manageable topics and in fact we can score in it, if we know the strategy to do so. Concepts is important in this topic whereby memorization is at a bare minimal. Yes! No need to memorise much! Do subscribe to this feed if you want to learn more about Mole Concepts and how to score confidently for this topic.
Let’s start with the in-depth discussion of the Mole Concepts Topic and see how we should approach some past years tough examination questions from top schools. We shall start with a manageable quesion that was once posted by a student:
Q) What is the volume at r.tp. of 10g of ethane (C2H6) gas?
Thought Process:
- Find Relative Molecular Mass (Mr) of C2H6
- Find the no. of mole present for 10g of C2H6
- Use Molar Volume to find the volume at r.t.p
Suggested Answer:
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