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Edexcel GCE AS Chemistry Unit 1: 22nd May 2015 + Unit 2: 02nd June 2015

Reply 1780

yasmin#2

15

Original post by Faaiz Shah

Mate the thought of me having to cram just made me reverse into another persons car at tesco. True story.

pahahahah

maybe you shouldnt be on TSR while driving...

Reply 1781

Faaiz Shah

2

Original post by yasmin#2

pahahahah

maybe you shouldnt be on TSR while driving...

I bought milk and stuff and sat inside,read the post and reversed straight into the other car. Was some lady . Hopefully it will b 30 quid ahhaah

Reply 1782

Mathbomb

6

Similar question but with Cl instead of Bromine...

Reply 1783

Whizbox

7

Original post by its1G

yeah unclear questions are really annoying. i rambled on about potential damage to the drug user's health. those two questions are the only ones where im not confident though, so shouldnt be too bad 😖

Those two questions were the only two that I didn't really have much of an idea of the answer, I made some stupid mistakes elsewhere on the paper though which I'm kicking myself about, but I suppose getting an A is all that really matters

Reply 1784

bbyturtlexox

12

Original post by Faaiz Shah

Mate the thought of me having to cram just made me reverse into another persons car at tesco. True story.

😂😂😂😂😂

Reply 1785

gabby07

11

Original post by its1G

i didnt like that follow up question. didnt seem right that i had to use biology knowledge to answer a chemistry question :s-smilie:

I said something about radioactivity, ionisation of cellular tissue --> potential mutation/cancers. I agree, unfair in both the sense they asked two suggest questions and that it's more biology surely?

Reply 1786

bbyturtlexox

12

Original post by Whizbox

Those two questions were the only two that I didn't really have much of an idea of the answer, I made some stupid mistakes elsewhere on the paper though which I'm kicking myself about, but I suppose getting an A is all that really matters

yeah should be fine ☺️☺️ But stacking up as much UMS would be beneficial in year 13 though (thats if you dont plan on dropping chemistry)

Reply 1787

Whizbox

7

Original post by its1G

yeah should be fine ☺️☺️ But stacking up as much UMS would be beneficial in year 13 though (thats if you dont plan on dropping chemistry)

Well worst case scenario i've got about 68/80 which dependant on grade boundaries could be anywhere from 100 to 116 or so. That's assuming that every question I'm not so sure about is wrong so hopefully I'll get a nice examiner who agrees with my point of view :wink:

Anyway, unit two has another 120 UMS up for grabs, lets hope I can steal a bit of that :wink:

(edited 8 years ago)

Reply 1788

tans

2

for the carbocation question, i said it had a postive charge becasue the pair of electron from the double bond were used up for form the H-Cl bond, so the carbon only had 6 electrons around it, leaving it with a positive charge? right or?

and for the blood sample, i said it had to be calibrated and make sure it doesnt show that there are banned substances even when there is no sample :/

(edited 8 years ago)

Reply 1789

bbyturtlexox

12

Original post by tans

for the carbocation question, i said it had a postive charge becasue the pair of electron from the double bond were used up for form the H-Cl bond, so the carbon only had 6 electrons around it, leaving it with a positive charge? right or?

and for the blood sample, i said it had to be calibrated and make sure it doesnt show that there are banned substances even when there is no sample :/

i dont think thats what the question was asking though

Reply 1790

Faaiz Shah

2

Original post by its1G

😂😂😂😂😂

http://www.thestudentroom.co.uk/showthread.php?t=3351259&p=56131067#post56131067
check out the thread ahha

Reply 1791

nerdygeek101

8

Original post by its1G

i didnt like that follow up question. didnt seem right that i had to use biology knowledge to answer a chemistry question :s-smilie:

There was a question about vacuum in mass spectrometer right?? And what was the answer do u think

Reply 1792

SashaF

16

What did you get for the percentage yield in multiple choice??

Reply 1793

bbyturtlexox

12

Original post by nerdygeek101

There was a question about vacuum in mass spectrometer right?? And what was the answer do u think

no air particles that may interfere and show up in the spectrum. also added that there are no air particles to react with the ions either

Reply 1794

bbyturtlexox

12

Original post by SashaF

What did you get for the percentage yield in multiple choice??

75%? was this the yield of hydrogen?

Reply 1795

Whizbox

7

Original post by its1G

no air particles that may interfere and show up in the spectrum. also added that there are no air particles to react with the ions either

I thought it was so that the ions couldn't collide with air or gas molecules which would slow them down and inhibit their movement, so they can move freely