[Man-Utd]

(Original post by v :))
How do work out the number of atoms present in a compound? Do you have to use Avogadro's Constant somewhere?

i think its (number of moles) divided by (6.02 x 10>23)
correct me if im wrong

[Man-Utd]

k everyone...let me ask u all a question.....

what products are formed when chlorine Cl2 reacts with water....c'mon, you all gotta know it

[Holz888]

(Original post by Man-Utd)
i think its (number of moles) divided by (6.02 x 10>23)
correct me if im wrong

Number of moles multiplied by avogadro constant, eg 1 mole is 1x 6.02x10^23, so 2 moles will be twice that = 2x6.02x10^23
(sorry if I'm sounding patronising)

[v :)]

okay guys. I'm just confused now, lol :|

[lucid3]

(Original post by TheFootyKing19)
Top of this page Emily! http://www.thestudentroom.co.uk/show...&page=7&page=7

THANKS BRO! Wasted an hour this afternoon looking for it with no luck.

[Man-Utd]

(Original post by Holz888)
Number of moles multiplied by avogadro constant, eg 1 mole is 1x 6.02x10^23, so 2 moles will be twice that = 2x6.02x10^23
(sorry if I'm sounding patronising)

yh ur right...dam me !!

[gemmabug]

Ok, after how weird the questions in the OCR Biology F211 paper were today, I'm really worried that OCR might have got the same idea for Chemistry Do you think 'let's ask strange irrelevant questions' theme might translate across the subjects

[ohmyBEAUT]

(Original post by v :))
okay guys. I'm just confused now, lol :|

Sorry, I wasn't sure how the equation goes.:/

[Man-Utd]

(Original post by v :))
okay guys. I'm just confused now, lol :|

yh Holz8888 is right

[Converse girl]

i think something on diamonds is going to come up.

[Man-Utd]

c'mon people try answer my question,.....i wanna see if everyone else has revised eh ?

[Man-Utd]

(Original post by salma25)
i think something on diamonds is going to come up.

yh....maybe something like "does diamond dissolve in polar or non polar solvents and why"

[Converse girl]

is the no becuase the covalent bonds are too strong there is a lot of energy required to break it

i think is going to be more on the structure...

[ohmyBEAUT]

(Original post by Man-Utd)
c'mon people try answer my question,.....i wanna see if everyone else has revised eh ?

Do you mean the selection of questions you gave?

[AlligatorSky]

(Original post by Man-Utd)
k everyone...let me ask u all a question.....

what products are formed when chlorine Cl2 reacts with water....c'mon, you all gotta know it

HClO + HCl

[LegendX]

U know what wkd be funny? If they tested the 'how w
Science works part' so by that I mean, when it asks about JJ Thomas and Mendeleev and the gang and stuff. I bet it'd be nsanely low grade boundaries then.

[Man-Utd]

(Original post by AlligatorSky)
HClO + HCl

Yes

and...what is the name of the HClO ? c'mon

[LegendX]

(Original post by AlligatorSky)
HClO + HCl

Ah damn, which part of the book is this but on btw? And the chemistry exam is in the morning right?

[LegendX]

(Original post by Man-Utd)
Yes

and...what is the name of the HClO ? c'mon

Ima take a random guess and say bleach

[Converse girl]

what i thought it was in the after noon

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