OCR H032/01 Breadth in Chemistry - June 2018 From www.ChemistryTuition.Net

[toffeefawn]

wish you went into more detail for the answers

[xPaced]

i think there is a rounding error on 22(b). I keep getting 3.1445... *10^-4. I do not see how you manage to get 3.15*10^-4

[hamzamian]

For Q3, when finding the mass of sodium using moles * molar mass, how come we don't use the molar mass of two sodium atoms since it's 2Na? (So how comes it's 0.08*23.1 instead of 0.08*46.2?)

[raman]

Could you please explain question 12 in more detail? For A, if we burned more then surely it will be more exothermic, would love your help on this one :)

[susanoo]

Wait why am i watching this, i already failed my exams

[jvsh]

tysm i was stuck on why it was minus for 23 (i)

[qjrgtny]

can you do one for ocr 2019 as paper please

[ahmadghaffar]

you can get more then 3/4 isomers for A and B when you shorten the chain and add a methyl group so why haven't you added those in..

[sarahxx]

Hi could you you explain the difference between a breadth paper and a depth paper?

[marinaahmed]

could u explain q15 multiple choice in more detail pls?