Molar and molecular weight of C5H12

• Molecular formula: C5H12 or (CH3)2CHCH2CH3
• Relative molecular weight of C5H12: 72.14878
• Molar mass of C5H12: 72.14878 g/mol (0.07215 kg/mol)

Calculation of the relative molecular and molar mass of C5H12

• Mr[C5H12] = Ar[C] * 5 + Ar[H] * 12 = 12.0107 * 5 + 1.00794 * 12 = 72.14878
• Molar mass (kg/mol) = Mr[C5H12] : 1000 = 72.14878 : 1000 = 0.07215 kg/mol

C5H12: percent composition by element

• Carbon (C) = 60.0535 : 72.14878 * 100 = 83.236 %
• Hydrogen (H) = 12.09528 : 72.14878 * 100 = 16.764 %

Molar mass calculator