Question

50g of rock salt was mixed with water then electrolysed to convert all the chloride ions to chlorine gas. 8.96 dm^3 of chlorine gas measured at S.T.P. were produced. One mole of any gas at S.T.P. has a volume of 22.4 dm^3 and take (A.r Na 23, Cl 35.5)

i) The number of moles of chlorine molecule is 8.96 dm^3 of chlorine gas is ...............

Answer 1

Thanks in advance

Answer 2

@random231

Answer 3

Well, you know 1 mole = 22.4 dm^3

Answer 4

So from volume to moles, what do you do?

Answer 5

8.96/22.4 ?

Answer 6

Yup!

Answer 7

thanks so much :D

Answer 8

You're very welcome.