Molar and molecular weight of CuSe

• Relative molecular weight of CuSe: 142.506
• Molar mass of CuSe: 142.506 g/mol (0.14251 kg/mol)

Calculation of the relative molecular and molar mass of CuSe

• Mr[CuSe] = Ar[Cu] + Ar[Se] = 63.546 + 78.96 = 142.506
• Molar mass (kg/mol) = Mr[CuSe] : 1000 = 142.506 : 1000 = 0.14251 kg/mol

CuSe: percent composition by element

• Copper (Cu) = 63.546 : 142.506 * 100 = 44.592 %
• Selenium (Se) = 78.96 : 142.506 * 100 = 55.408 %

Molar mass calculator