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OCR F324-June 2013 Chemistry

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Original post by otrivine
yes and could mention the equation and say that it involes the exchange of Hydrogen in COOH with D


Hey otrivine, when you're online mate I have a confession!

Chiral synthesis is acceptable! Just thought I'd let you know, and I apologise for my misunderstanding, it's just that I read somewhere that you must distinguish between the two, but recently just looked at a mark scheme and either doesn't matter :smile:

Sorry bud.
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Original post by reneetaylor
Hey otrivine, when you're online mate I have a confession!

Chiral synthesis is acceptable! Just thought I'd let you know, and I apologise for my misunderstanding, it's just that I read somewhere that you must distinguish between the two, but recently just looked at a mark scheme and either doesn't matter :smile:

Sorry bud.


No worries :smile:

How are you?

Hey up for f325 revision on chapters 1 and 2
Reply 662
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Original post by otrivine
no worries :smile:

how are you?

Hey up for f325 revision on chapters 1 and 2


i am old friend!!!! :biggrin:
Reply 663
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Original post by MasterYi
NOT MANY QUESTION!? :smile:

Here a link to all my F324 stuff.

•

All gettable pastpaper from the new syllabus

•

A compliation of legacy paper questions

•

A lot of resources questions

•

Many types of notes for the different modules



https://mega.co.nz/#F!1RERQA4T!eG0h_T6diWlz90D6Medplg

Right click the red cloud and click download.
Right click.jpg


OMG God bless dude...you have no idea how much I needed a compiled bank of F324 revision :biggrin: Thank you so much!
Have you got one for F325? THAT WOULD JUST BE AWESOME!
(edited 11 years ago)
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Original post by Gulzar
i am old friend!!!! :biggrin:


Hi buddy , want to revise F325 chapter 1 and 2:biggrin:
Reply 665
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Gulzar
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Original post by otrivine
Hi buddy , want to revise F325 chapter 1 and 2:biggrin:


U got it! You start fire :wink:
Reply 666
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Gulzar
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Original post by otrivine
Hi buddy , want to revise F325 chapter 1 and 2:biggrin:


Shall I ask a question first?
Reply 667
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Original post by Gulzar
U got it! You start fire :wink:


Define:standard entropy change of reaction (2)
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Original post by otrivine
Define:standard entropy change of reaction (2)


Entropy change which takes place when the reaction occurs in the molar quantities of the reaction's chemical equation.
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Original post by Gulzar
Entropy change which takes place when the reaction occurs in the molar quantities of the reaction's chemical equation.


yep and that the reactant and product are on the same standard state.
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Original post by otrivine
yep and that the reactant and product are on the same standard state.


What is an order of a reactant and how is it determined?
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Original post by Gulzar
What is an order of a reactant and how is it determined?


order with respect to a reactant is the concentration of the reactant raised by a power in the rate equation, Order is detemined using experimental data values in which varying concentration of reactants and using the inital rates and to set up a initial rate aganist initial concentration graph
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Original post by otrivine
order with respect to a reactant is the concentration of the reactant raised by a power in the rate equation, Order is detemined using experimental data values in which varying concentration of reactants and using the inital rates and to set up a initial rate aganist initial concentration graph


Correct
Reply 673
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Original post by Gulzar
Correct



Suggest the colour change when bromine reacts with methanoic acid (2)
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Original post by otrivine
Suggest the colour change when bromine reacts with methanoic acid (2)


Which topic is this?
I think the solution will go form brown to colourless
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Original post by Gulzar
Which topic is this?
I think the solution will go form brown to colourless


colourless is correct, but it is orange to colourless.

Its on chapter 1.

My turn :smile:
Reply 676
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Original post by otrivine
colourless is correct, but it is orange to colourless.

Its on chapter 1.

My turn :smile:


What is a buffer solution? (I am very sorry but I am gonna have to dash out with the family :O )

I will try my best to be on here tommorow :biggrin:
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Original post by Gulzar
What is a buffer solution? (I am very sorry but I am gonna have to dash out with the family :O )

I will try my best to be on here tommorow :biggrin:


sure :smile:

Buffer solution is to minimise the PH change by the addition of acid and/or base.
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MasterYi
Original post by Gulzar
OMG God bless dude...you have no idea how much I needed a compiled bank of F324 revision :biggrin: Thank you so much!
Have you got one for F325? THAT WOULD JUST BE AWESOME!


Yes, you're welcome. :smile:

https://mega.co.nz/#F!IR1EkJYa!AWU6DT9zS5oTBymDeXpNcg
Original post by MasterYi


Wow thanks uber useful, +rep just isn't enough!

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