Question

If the empirical formula for a compound is NO2 and the molecular mass is 230.05 g/mol, what is the molecular formula for the compound? fast

Answer 1

Answer: $\text{N}_{5}\text{O}_{10}$

Explanation:

• The atomic mass of nitrogen is 14.0067 g/mol.
• The atomic mass of oxygen is 15.9994 g/mol.

This means the molecular mass of nitrogen dioxide is $14.0067+2(15.9994)=46.0055$ g/mol.

Dividing this molecular mass of the compound we need to find, we get that

$\frac{230.05}{46.0055} \approx 5$.

So, the final answer is $\boxed{\text{N}_{5}\text{O}_{10}}$