Question

Question #ea2ce

Answer 1

D => 0.055 moles

Explanation:

The molecular weight of `O_2` can be calculated by adding up the masses in the compound.

`2* 16.00 u` (mass O-atom) =32.00 g/mol

Now to get the number of moles out of the mass given, you only have to divide the grams by the molecular weight!

`1.75/32.00` =0,0546875 moles

This is answer D!