Molar and molecular weight of C7H3N3O8

• Molecular formula: C7H3N3O8 or (O2N)3C6H2COOH
• Relative molecular weight of C7H3N3O8: 257.11402
• Molar mass of C7H3N3O8: 257.11402 g/mol (0.25711 kg/mol)

Calculation of the relative molecular and molar mass of C7H3N3O8

• Mr[C7H3N3O8] = Ar[C] * 7 + Ar[H] * 3 + Ar[N] * 3 + Ar[O] * 8 = 12.0107 * 7 + 1.00794 * 3 + 14.0067 * 3 + 15.9994 * 8 = 257.11402
• Molar mass (kg/mol) = Mr[C7H3N3O8] : 1000 = 257.11402 : 1000 = 0.25711 kg/mol

C7H3N3O8: percent composition by element

• Carbon (C) = 84.0749 : 257.11402 * 100 = 32.699 %
• Hydrogen (H) = 3.02382 : 257.11402 * 100 = 1.176 %
• Nitrogen (N) = 42.0201 : 257.11402 * 100 = 16.343 %
• Oxygen (O) = 127.9952 : 257.11402 * 100 = 49.781 %

Molar mass calculator