Question

Calculate the mass in grams of 2.5*10^20 NO molecules

Answer 1

N = 14

O = 16
NO = 30.
Therefore, 30 g NO will contain 6.02E23 molecules
mols NO in 2.5E20 molecules = 2.5E20/6.02E23 = ? mols NO.
1 mol has a mass of 30 g so ? mols will have a mass of .....