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OCR Chemistry A Exam Thread (Breadth - May 27 2016 and Depth - June 10 2016)

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Reply 420

Nikosunway

Original post by Mancdude

I guess you did not do Maths then if you think 56 is 80+

Total marks : 70.

80% out of total : 70* 0.8=56. Any questions?

Reply 421

Rav0705

Has anybody got an official mark scheme?

Posted from TSR Mobile

Reply 422

A Sajid

Original post by Rabbitlover99

http://www.thestudentroom.co.uk/showthread.php?t=4123873

Reply 423

S.G.

For the last question going from a haloalkane to alcohol, they asked for the reagent, but I put OH-. Do you think I will still get the mark?

Reply 424

A Sajid

Original post by sum123456

did you find one?

http://www.thestudentroom.co.uk/showthread.php?t=4123873

Reply 425

456CJ

anyone ? 24.8 for the volume of h2s04

Reply 426

sum123456

Original post by A Sajid

http://www.thestudentroom.co.uk/showthread.php?t=4123873

thanks

Reply 427

CheeseIsVeg

Was the (delta)H of reaction not -29?
I thought you put the (aq) 50cm3 as the mass in the equation, not the sum of the 2 (100) which would give you -58
What do you guys think? :s-smilie:

Reply 428

hashman

Original post by 456CJ

did anyone get 24.8 for the volume of sulfuric acid

yup

Reply 429

Mancdude

Original post by Nikosunway

Total marks : 70.

80% out of total : 70* 0.8=56. Any questions?

yes question is are we talking about the same exam because it is marked out of 60.

Reply 430

456CJ

Original post by CheeseIsVeg

Was the (delta)H of reaction not -29?
I thought you put the (aq) 50cm3 as the mass in the equation, not the sum of the 2 (100) which would give you -58
What do you guys think? :s-smilie:

Reply 431

CheeseIsVeg