I get that from the equation but the gradient was slanting upwards (positive) and the given value on the next page was positive so it didn't make sense to be negative

Was the q related to the question tho?

Reply 986

Jitesh

Original post by adamwall99

oh **** i got the exact same. Ddccbcadcaacbcb

Can u remember what the 7th and 15th question were on about coz Im missing them coz I'm terrible

Reply 987

megan9212

What did people get for the Cu2+ reaction with I-?
I got CuI2 for the white ppt but what was the brown solution?

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Reply 988

SidTheSloth1

Original post by chodeler

Yes this is right, dont listen to those fools getting 4.5

are u restarted m8, the student add the salt to the acid, no neutralisation ****ing took place

Reply 989

kp0pfan21

Original post by eryk_laroche

OH NO I think i misunderstood the question

I got Zn as the best reducing agent and MnO4 as the best oxidising agent :/

I made the same mistake ;-;

Reply 990

chica3005

Original post by matty314

That just means delta S itself is negative 2 negative values make a positive

On the next page it said delta s was positive

Reply 991

eryk_laroche

Original post by chica3005

I get that from the equation but the gradient was slanting upwards (positive) and the given value on the next page was positive so it didn't make sense to be negative

The gradient we know was definitely POSITIVE ( since graph) but because we have an UNKNOWN ( delta s ) this means that delta s must have been negative to give a positive gradient ??? idk thats what i was thinking

Reply 992

chica3005

Original post by Jitesh

Was the q related to the question tho?

I'm talking about p

Reply 993

SashaWicks

Original post by itsjustaneesa

I'm pretty sure the formula was KClO3.. giving an oxidation number of 5 not 7..?

I think it was KClO4 making it +7

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Reply 994

Jitesh

Original post by megan9212

What did people get for the Cu2+ reaction with I-?
I got CuI2 for the white ppt but what was the brown solution?

Posted from TSR Mobile

I got CuI and I2

Reply 995

TLS1234

How did everyone find it?
what did everyone get for the buffer question, i said he would make pH 4.5 (or whatever it was)

Reply 996

MSmon

Original post by eryk_laroche

marcel?

Paper was 2 EZ gonna be 99 marks for an A*

Reply 997

tobias99

Can someone explain the working for the Kc question- can't remember if I got 2.45 or 12.45? And can you remember the figures so I can rework mine out?