[InkyOne]

(Original post by Princess Kawaii)
Yup..oh okay...I got that wrong then haha

what did u get for the ratio question...was 7.14 right?

Sorry - I got 0.14 but it's not even a ratio!

[master_blaster66]

(Original post by InkyOne)
Sorry - I got 0.14 but it's not even a ratio!

yeah i got that too

[rjtweddle]

(Original post by Beffnaay)
What did people get for the salt to acid ratio?!

1:8 maybe? i cant remember!

[georgie94]

(Original post by InkyOne)
Sorry - I got 0.14 but it's not even a ratio!

0.14 to 1 is equal to 1 to 7.14 (right?) so I think they are both technically right

[battsa]

(Original post by georgie94)
0.14 to 1 is equal to 1 to 7.14 (right?) so I think they are both technically right

Yes.

[I failed badly]

(Original post by aim28)
I put -38, do you know what the right answer was??

The right answer is -38 i think. I have seen the paper today and looked through the questions and i am pretty sure that is what i put now as i have no clue how you could get +38. Looking back at the paper there were some tricky bits but it wasnt as bad as a first thought, lucky for me i think i have managed to fluke some answers.

[fw953]

(Original post by Dixie)
so is everyone thinking that the grade boundaries will be low for this like 81 and below?

It was 80 for the january paper (I think- its definitely been 80 before anyway!) so I'm hoping lower (mid to high 70s??) as this was definitely a lot harder

[Lilgig]

(Original post by I failed badly)
The right answer is -38 i think. I have seen the paper today and looked through the questions and i am pretty sure that is what i put now as i have no clue how you could get +38. Looking back at the paper there were some tricky bits but it wasnt as bad as a first thought, lucky for me i think i have managed to fluke some answers.

As you have looked at the paper can you put some of the middle questions on here!!! Or a mark scheme!!!

[bertiejess]

for the 3rd ionisation of Zn did we have to put the state symbol of gas because I completely forgot that!!!

[Toshiya]

(Original post by bertiejess)
for the 3rd ionisation of Zn did we have to put the state symbol of gas because I completely forgot that!!!

I think so, it said 'include state symbols' and that really confused me... I think I put they were aqueous which is wrong but I had complete brain fade

[sanjeevp]

(Original post by Princess Kawaii)
can anyone explain how u were supposed to find the concnetration of Nitrogen using the Oxygen concentration?

And then for the ratio question what did people get?

I got 7.14 But I didnt write that and for some reason wrote 7:1

The concentration of oxygen worked out by doing 0.2 (parts of oxygen) divided by 24 and that gave 8.3.....
The nitrogen was found by doing 0.8 (ratio of 4:1) divide by 24 to give 3.3x10^-2 or something


This was posted from The Student Room's iPhone/iPad App

[sunshinesmile10]

hey, but off topic but does anyone do edexcel biology? is there a thread for the B5 exam...cant find one on here. Sorry for the hijack

[misspinx20]

(Original post by master_blaster66)
yeah i got that too

they asked for a ratio?! I just put down 0.14 thinking that's the right answer :O I think i'm blind. I didn't even read the question properly

[user3456]

(Original post by sunshinesmile10)
hey, but off topic but does anyone do edexcel biology? is there a thread for the B5 exam...cant find one on here. Sorry for the hijack

22nd June?

http://www.thestudentroom.co.uk/show...2#post38129469

[14loubylou]

(Original post by InkyOne)
Sorry - I got 0.14 but it's not even a ratio!

i got 0.14:1 too but you should be fine because in past mark schemes the anwser was just one number not a ratio, which is wrong but at least you get the marks!

[InkyOne]

(Original post by 14loubylou)
i got 0.14:1 too but you should be fine because in past mark schemes the anwser was just one number not a ratio, which is wrong but at least you get the marks!

Yeah, that's why i didn't put a ratio - did in the past but was marked down, but I think that was just my teacher being fussy...

[LexxieK]

Who has got the paper then?

[Einy]

well they did show you one divided by the other

[haibara ai]

lol, and here i am meant to be doing chemistry at imperial next year!

It is going to be sooo embarising when i dont get in for actually failing chemistry!

[wazildhum12]

about the ratio thing i looked at past papers and the correct answers were not ratios so i didn't put a ratio. Not that i knew how to do that even if i had to but i feel like 0.14 should be correct