Molar and molecular weight of Mn(OH)2

• Molecular formula: Mn(OH)2 or H2MnO2
• Relative molecular weight of Mn(OH)2: 88.952725
• Molar mass of Mn(OH)2: 88.952725 g/mol (0.08895 kg/mol)

Calculation of the relative molecular and molar mass of Mn(OH)2

• Mr[Mn(OH)2] = Ar[H] * 2 + Ar[Mn] + Ar[O] * 2 = 1.00794 * 2 + 54.938045 + 15.9994 * 2 = 88.952725
• Molar mass (kg/mol) = Mr[Mn(OH)2] : 1000 = 88.952725 : 1000 = 0.08895 kg/mol

Mn(OH)2: percent composition by element

• Hydrogen (H) = 2.01588 : 88.952725 * 100 = 2.266 %
• Manganese (Mn) = 54.938045 : 88.952725 * 100 = 61.761 %
• Oxygen (O) = 31.9988 : 88.952725 * 100 = 35.973 %

Molar mass calculator