Year 12s: what will be the first way you research your future options? >>

Year 12s: what will be the first way you research your future options? >>

Year 12s: what will be the first way you research your future options? >>

OCR Chemistry B (Salters) F334/F335 Exam Thread 2016 (14th/22nd June)

Scroll to see replies

hope i can make it even to that...though i need nearer to 80ums

Original post by lyricalvibe

Yeah I'll upload it soon-ish unless it's urgent for you rn :P?

Posted from TSR Mobile

can you upload it please?? :smile:

:smile:

Original post by George12411

can you upload it please?? :smile:

:smile:

really sorry for the delay, could you PM me your email? I've tried uploading it before but TSR just said the file size was too large :/

do u know if there is there going to be a f334 resit next year?

Justtryingtolive

I personally found that paper extremely difficult. 50-54/90

What did you guys think?

What do you reckon will be for the A*, I think 62/90

as justified as that may be, let's be real..."ocr shows compassion" is unlikely to make the headlines on 11th august

:/

username1626859

Posted from TSR Mobile

Omg guys how are you revising for f335?

Original post by kosvengali

Posted from TSR Mobile

Omg guys how are you revising for f335?

I'm really struggling as well :frown:

:frown:

I'm just doing past papers and legacy papers
Going through the text book doing the questions
Making flash cards

username1626859

Wow, how do you make time to do these past papers?

Posted from TSR Mobile

Original post by kosvengali

Wow, how do you make time to do these past papers?

Posted from TSR Mobile

It's a struggle I tell you but luckily for me I've only got f335 and biol5 left
So wake up super early and sleep super late :frown:

:frown:

or do all nighters back to back

guys for f335, in colour by design, does anyone know why storylines (top of page 121) says that direct dyes are soluble in water? i know they make hydrogen bonds but surely being soluble in water is a bad thing as theyd be less fast with the material?

username1626859

Posted from TSR Mobile
Guys could you help me with this question please?
It's question 5 of Jan 2012, the answer was 3.34

1466237760191.jpg42.5KB

username1626859

Original post by kosvengali

Posted from TSR Mobile
Guys could you help me with this question please?
It's question 5 of Jan 2012, e (ii) the answer was 3.33

Posted from TSR Mobile

Original post by kosvengali

Posted from TSR Mobile
Guys could you help me with this question please?
It's question 5 of Jan 2012, the answer was 3.34

[H+]= Ka x [HA]/ [A-]

[H+]= 9.3x10-4 x 0.05/0.1

[H+] = 4.65x10-4

-log(4.65x10-4) = 3.33

You have to assume that the concentration of A- was the same as that for HA which was shown in a previous question. Then as A- was twice that of HA, HA must be half of 0.10

Posted from TSR Mobile

(edited 7 years ago)

does anyone have any f335 revision notes?

username1626859

Original post by Elle_w

[H+]= Ka x [HA]/ [A-]

[H+]= 9.3x10-4 x 0.5/0.1

[H+] = 4.65x10-4

-log(4.65x10-4) = 3.33

You have to assume that the concentration of A- was the same as that for HA which was shown in a previous question. Then as A- was twice that of HA, HA must be half of 0.10

Posted from TSR Mobile

Thank you!!!

Original post by kosvengali

Thank you!!!

You are welcome 😆. It should actually be 9.3x10-4 x 0.05/0.10 I've changed it on the original post.

Posted from TSR Mobile

(edited 7 years ago)

Does anyone have the mark scheme for the june 2015 F335 paper?

LewisEdwards1234

How many marks over the A are required for full UMS to be achieved on F335

username1626859

Posted from TSR Mobile

How do you get full ums in this exam?

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you

Students react after GCSE Chemistry Paper 2 on 13 June 2023

Students react after GCSE Chemistry Paper 2 on 13 June 2023

Students react to A-level Chemistry Paper 2 on 19 June 2023

Students react to A-level Chemistry Paper 2 on 19 June 2023

Students react after A-level Chemistry Paper 3 on 23 June 2023

Students react after A-level Chemistry Paper 3 on 23 June 2023

Students react after A-level Chemistry Paper 1 on 12 June 2023

Students react after A-level Chemistry Paper 1 on 12 June 2023