Molar and molecular weight of CH3NH2

• Molecular formula: CH3NH2 or CH5N
• Relative molecular weight of CH3NH2: 31.0571
• Molar mass of CH3NH2: 31.0571 g/mol (0.03106 kg/mol)

Calculation of the relative molecular and molar mass of CH3NH2

• Mr[CH3NH2] = Ar[C] + Ar[H] * 5 + Ar[N] = 12.0107 + 1.00794 * 5 + 14.0067 = 31.0571
• Molar mass (kg/mol) = Mr[CH3NH2] : 1000 = 31.0571 : 1000 = 0.03106 kg/mol

CH3NH2: percent composition by element

• Carbon (C) = 12.0107 : 31.0571 * 100 = 38.673 %
• Hydrogen (H) = 5.0397 : 31.0571 * 100 = 16.227 %
• Nitrogen (N) = 14.0067 : 31.0571 * 100 = 45.1 %

Molar mass calculator