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HELP in chemistry

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Reply 20

taherq

answers that i had tried and they all were wrong
1. 630.1
2. 3.8x10^26
3. 4.52x10^24
4. 6.022x10^23

Reply 21

cz100

Original post by taherq

answers that i had tried and they all were wrong
1. 630.1
2. 3.8x10^26
3. 4.52x10^24
4. 6.022x10^23

you haven't tried 45?

Reply 22

taherq

Original post by cz100

Maybe try 30 if they mean the oxygen to be one 'type' of atom? I was pretty sure the answer should be 45 for moles of atoms

i didnt try 45 . but are u sure of ur answer because i just got one more chance to answer this question

Reply 23

cz100

Original post by taherq

i didnt try 45 . but are u sure of ur answer because i just got one more chance to answer this question

Oh right. Well I really can't think of what else since it's asking for number of moles and not number of particles, so it shouldn't be a very big answer.

Reply 24

taherq

Original post by cz100

Oh right. Well I really can't think of what else since it's asking for number of moles and not number of particles, so it shouldn't be a very big answer.

ya 45 is correct

Reply 25

taherq

Original post by cz100

Oh right. Well I really can't think of what else since it's asking for number of moles and not number of particles, so it shouldn't be a very big answer.

can u tell me how did u solve it

Reply 26

cz100

Original post by taherq

can u tell me how did u solve it

it's in post no.13. If you think of there as being 6 different atoms (I know there isn't but the O3 can count as 3 separate one is this calculation) in the molecule and 7.5 moles of each, then 6x7.5=45