(AS) OCR Chemistry salters depth paper (10/6/16)

How did everyone find the paper? I have no idea but it was better than the breadth paper for sure

I did my enthalpy profile diagram the wrong way!! I'm so DUMBBB! The rest of it was okay though. How many marks do you think I've lost for that question? I am so annoyed at myself for getting it wrong!!!
Also what did you guys get for the structure at the end?

methylpropanoic acid

I did my enthalpy profile diagram the wrong way!! I'm so DUMBBB! The rest of it was okay though. How many marks do you think I've lost for that question? I am so annoyed at myself for getting it wrong!!!
Also what did you guys get for the structure at the end?

What enthalpy profile diagram? Did I miss a page or something?

Edit: oh, you mean the Hess cycle?

methylpropanoic acid

Yeahh I got that too! But I didn't name it though :/ oops,

Yeah that one! But I just looked in book and I thiink I just drew the arrow going downwards instead of upwards so not as bad as I thought!

I just googled the name

The specification says we don't need to be able to name esters, carboxylic acids, acid anhydrides etc, so a structural formula and the word 'ester' should be fine I would guess.

Wait, what was the question? I thought they gave you combustion and asked you to work out formation, so aren't the arrows supposed to point downwards?

Also Jamesinatr when did you have to work out the enthalpy change of formation? I do not remember a question on that!?

Okay that's alright then. But I thought it was a carboxylic acid not an ester?

Oops :/

I got ethyl ethanoate (ester). What's the difference regarding IR spectra and mass spectra? They both have the same molecular formula.

I guess it is then. Do you remember what the IR peak was?

I found the c=o peak and the o-h peak I don't remember the exact numbers but it was in the range on the formula sheet.

The o-h peak should have been broad then but it was not. I found no o-h peak.