How many moles of N204 are in 76.3 g N204? The molar mass of N204 is 92.02 g/mol.

The number of moles of the compound is given as :

Number of moles= Mass Given / Molar Mass Of Compound

Given; The mass of N2O4 is: m =76.3 grams and

The molar mass of N2O4 is; M = 92.02 g/mol

Let the number of moles of N2O4 be n ;

Then Formula for calculating moles is, n = m / M

=> n = 76.3 / 92.02

=> n = 0.829 moles .