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OCR Chemistry Salters B F331 27th May 2016 (Old specification)

Seeing as it seems this exam isn't mentioned anywhere on TSR, I thought I would create a thread for those retaking this exam, even though it seems like there's nobody retaking it except me :laugh:

Feel free to discuss what you think will come up or what you hope doesn't! Could also use this thread to discuss our views on the exam tomorrow :smile:

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Reply 1

Daniel9998

im retaking this unit for some strange reason

Reply 2

Kaz_96

Original post by Daniel9998

im retaking this unit for some strange reason

Me too tbh haha, just retaking because I know every single UMS will help. Hopefully it's a straight forward exam like it has been previous years

Reply 3

Randomsher789

Doing this unit too, just hoping for the best right now I guess..

Reply 4

Daniel9998

Original post by Kaz_96

Me too tbh haha, just retaking because I know every single UMS will help. Hopefully it's a straight forward exam like it has been previous years

Hopefully but one thing I know for certain is that the grade boundaries are gonna be very high this year. Id say 52/60 for an A at least.

Reply 5

Kaz_96

Original post by Daniel9998

Hopefully but one thing I know for certain is that the grade boundaries are gonna be very high this year. Id say 52/60 for an A at least.

why do you know for certain the boundaries are gonna be high this year? because its the last exams of this specification?

Reply 6

meg16

How did people find it ? Questions were okay calculations were abit ****

Reply 7

nwodnodinqi

What answers did people put for each calculation

Reply 8

meg16

I don't even know I put +46 or something like that for the Hess law for the other ones I had no clue literally what did u pit

Reply 9

SohaXO

I couldn't answer first page of calculations but o also got +46 for the enthalpy

Reply 10

meg16

I'm glad I wasn't the only one !! They were so weird and the energy density one and the mole percentage of kno3 one ? How did you find the theory

Reply 11

Kaz_96

wasn't the hess' law calc +41? What did you put for the man made pollutant for the firework? I put photochemical smog, dunno if thats right though

Reply 12

SohaXO

Original post by Kaz_96

wasn't the hess' law calc +41? What did you put for the man made pollutant for the firework? I put photochemical smog, dunno if thats right though

What one??

Reply 13

Kaz_96

Original post by SohaXO

What one??

It was something like zinc reacts in fireworks, a gas is produced, what is the name of this type of man made atmospheric pollutant? Something like that

Reply 14

Kwaks

Original post by Kaz_96

It was something like zinc reacts in fireworks, a gas is produced, what is the name of this type of man made atmospheric pollutant? Something like that

Yeah....I didn't get that question. I just put particulates lol 😂

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Reply 15

Kwaks

Original post by Kaz_96

wasn't the hess' law calc +41? What did you put for the man made pollutant for the firework? I put photochemical smog, dunno if thats right though

I got +41 for the Hess' law too

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Reply 16

Taz35

what did people get for the calculations?? I defo messed them all up 😑

Reply 17

meg16

The Hess law one might be 41 I got 40 something can't remember the exact Num and omg that question I had no idea😂

Reply 18

Kwaks

Also...what did everyone put for the mass of air needed to burn the C4H10O thing??

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Reply 19

Kaz_96

These were my calculation answers, in order of how they appeared in the q paper
Mass of air: 834.7
Mass of air for 1g of C4H10O: 11.28
Energy Density: 36200
Hess' Law: +41
KNOW: 34.15%

Not sure if theyre right but lemme know if you got the same/different