[Pammy]

The answer is B. electrons in 1g of Hydrogen
can someone tell me why !!!???

Thanx in advance

[will_789]

The answer is B. electrons in 1g of Hydrogen
can someone tell me why !!!???

Thanx in advance

Woop i know this answer!!!
Right, give me 5 mins and ill explain!

[Nathan]

the only ones i can rule out are C&D because C is 2xavogado's as is D...A&B seem to give me the same answer :S

[will_789]

the only ones i can rule out are C&D because C is 2xavogado's as is D...A&B seem to give me the same answer :S

ooo, soo close!!!
A is ruled out because the mass of one mole of oxygen is 32g, not 16!
O(small2)
Therefore there are 6.02x10^23 molecules in 32g, which isnt correct
Thats all you've done wrong.
Well done on the process of elimination

[Pammy]

A is only half a mole of Oxygen so it's half of Avagadros
And that's what I thought about C, but how did you know D was 2x avagadro ??

[Nathan]

O(small2)

you can do O [ s u b ]2[ / s u b] (no spaces) = O₂

[will_789]

A is only half a mole of Oxygen so it's half of Avagadros
And that's what I thought about C, but how did you know D was 2x avagadro ??

My Chemistry teacher told us something that it cant ever be ions...Im not quite sure tho...Could be wrong...lol

[Nathan]

And that's what I thought about C, but how did you know D was 2x avagadro ??

Na⁺ + Cl^- = 2moles ions = 2xavogadros

edit *i think*

[will_789]

And that's what I thought about C, but how did you know D was 2x avagadro ??

Na⁺ + Cl^- = 2moles ions = 2xavogadros

edit *i think*

Yeah well done, thats it.
Also, my chemistry teacher told us, if you cant work out the answer for these types, always guess the hydrogen if you cant completely eliminate it, as hydrogen is usually the answer

[Pammy]

And that's what I thought about C, but how did you know D was 2x avagadro ??

Na⁺ + Cl^- = 2moles ions = 2xavogadros

edit *i think*

Yeah well done, thats it.
Also, my chemistry teacher told us, if you cant work out the answer for these types, always guess the hydrogen if you cant completely eliminate it, as hydrogen is usually the answer

Pair of smarty pants !!
Thanx for the help !! much appreciated !!

Edit: omg look !!! I'm a site swot now !!!!!!!!! I think I am out of noobville now !!

[will_789]

And that's what I thought about C, but how did you know D was 2x avagadro ??

Na⁺ + Cl^- = 2moles ions = 2xavogadros

edit *i think*

Yeah well done, thats it.
Also, my chemistry teacher told us, if you cant work out the answer for these types, always guess the hydrogen if you cant completely eliminate it, as hydrogen is usually the answer

Pair of smarty pants !!
Thanx for the help !! much appreciated !!

Not a problem, Helping people is helping me!

[Nathan]

Not a problem, Helping people is helping me!

that's my excuse for sitting here and chatting to peeps too

[will_789]

Not a problem, Helping people is helping me!

that's my excuse for sitting here and chatting to peeps too

Yeah, doing past papers at the same time

[Pammy]

Not a problem, Helping people is helping me!

that's my excuse for sitting here and chatting to peeps too

Hey nathan, you just blew my cover !!!!!!!!!!!! Well done !!

Edit: the "well done" is supposed to be in a sarcastic tone btw

[Nathan]

Hey nathan, you just blew my cover !!!!!!!!!!!! Well done !!

Edit: the "well done" is supposed to be in a sarcastic tone btw

[sarcasm]i'm sorry[/sarcasm]

[Pammy]

Yeah, doing past papers at the same time

Yes sure
nah I'm only kidding, I am doing that too, my mum says I should be a teacher coz I love to explain stuff to people and sit on this waiting for people to get stuck I know, I'm weird, but it's true

Edit: I agree with you will tho coz it does help me too (and makes me feel smart when I get it right )

[will_789]

Yeah, doing past papers at the same time

Yes sure
nah I'm only kidding, I am doing that too, my mum says I should be a teacher coz I love to explain stuff to people and sit on this waiting for people to get stuck I know, I'm weird, but it's true

totally helps revision tho!!!

[Nathan]

Yes sure
nah I'm only kidding, I am doing that too, my mum says I should be a teacher coz I love to explain stuff to people and sit on this waiting for people to get stuck I know, I'm weird, but it's true

That's what I;m doing too

[Pammy]

[sarcasm] omg it's just like a big game of snap in here !!! [/sarcasm]

Sorry I had to steal your sarcasm thing nathan coz it actually made me lol

[Nathan]

[sarcasm] omg it's just like a big game of snap in here !!! [/sarcasm]

Sorry I had to steal your sarcasm thing nathan coz it actually made me lol

***disclaimer***

the [sarcasm] and [/sarcasm] tags are copyright nathanm 2006

now leave it alone pammy



jus kiddin