I just need to confirm my answer:
A metal forms a sulphate whose formula is M2SO4. The mass of 1 mole of this sulphate is 118g. What is the relative atomic mass of M?
a)11
b)14
c)22
d)28
Is the answer A? Or is it C?

Question

I just need to confirm my answer: 
A metal forms a sulphate whose formula is M2SO4. The mass of 1 mole of this sulphate is 118g. What is the relative atomic mass of M? 
a)11
b)14
c)22
d)28
Is the answer A? Or is it C?

anonymous · Answer

are you sure you got the chemical formula right?

anonymous · Answer

Yeah. It's $$M _{2}SO _{4}$$.

anonymous · Answer

It's a

anonymous · Answer

You sure? I worked out A as well but the book says it's C. So I was confused.

anonymous · Answer

well i didn't remember a M on the peroidic table so i added up  a sulfer and 4 oxegen for 96. I subtracted that from 118-96=22, then divided that by 2 for 11. So i'm still a little confused about this M atom

anonymous · Answer

I did the same. I guess there's some flaw with the question then.

anonymous · Answer

Yea it caught me as a mistake sorry about that

anonymous · Answer

Thank you anyway!