Maybe I'm missing something on the periodic table. I need to find the molar mass of M(OH)subscript2 but I cannot find M on the p. table.

Question

aaronq · Answer

no such thing.. maybe it meant "Mg"?

anonymous · Answer

Ok. So I'm not overlooking it. So the question given to me is to calculate the molar mass of M(OH)2, given the fact that it contains 32.8% of oxygen by mass. where would I begin?

aaronq · Answer

ohh it's one of those, M is a mystery questions.

so 32.8 % =16g/mol *2 = 32 g/mol

what does 100% weight?

anonymous · Answer

The subscript 2 means there's 2 oxygen and two hydrogen atoms? 16 g/mol is the mass of oxygen correct?

aaronq · Answer

yep, thats correct

anonymous · Answer

Took me some time but I found my answer. Thank you!!