Molar and molecular weight of Li2Cr2O7

• Relative molecular weight of Li2Cr2O7: 229.87
• Molar mass of Li2Cr2O7: 229.87 g/mol (0.22987 kg/mol)

Calculation of the relative molecular and molar mass of Li2Cr2O7

• Mr[Li2Cr2O7] = Ar[Li] * 2 + Ar[Cr] * 2 + Ar[O] * 7 = 6.941 * 2 + 51.9961 * 2 + 15.9994 * 7 = 229.87
• Molar mass (kg/mol) = Mr[Li2Cr2O7] : 1000 = 229.87 : 1000 = 0.22987 kg/mol

Li2Cr2O7: percent composition by element

• Lithium (Li) = 13.882 : 229.87 * 100 = 6.039 %
• Chromium (Cr) = 103.9922 : 229.87 * 100 = 45.24 %
• Oxygen (O) = 111.9958 : 229.87 * 100 = 48.721 %

Molar mass calculator