Molar and molecular weight of Rb2CrO4

• Molecular formula: Rb2CrO4 or CrO4Rb2
• Relative molecular weight of Rb2CrO4: 286.9293
• Molar mass of Rb2CrO4: 286.9293 g/mol (0.28693 kg/mol)

Calculation of the relative molecular and molar mass of Rb2CrO4

• Mr[Rb2CrO4] = Ar[Cr] + Ar[O] * 4 + Ar[Rb] * 2 = 51.9961 + 15.9994 * 4 + 85.4678 * 2 = 286.9293
• Molar mass (kg/mol) = Mr[Rb2CrO4] : 1000 = 286.9293 : 1000 = 0.28693 kg/mol

Rb2CrO4: percent composition by element

• Chromium (Cr) = 51.9961 : 286.9293 * 100 = 18.122 %
• Oxygen (O) = 63.9976 : 286.9293 * 100 = 22.304 %
• Rubidium (Rb) = 170.9356 : 286.9293 * 100 = 59.574 %

Molar mass calculator