Molar and molecular weight of ClKO4

• Molecular formula: ClKO4 or KClO4
• Relative molecular weight of ClKO4: 138.5489
• Molar mass of ClKO4: 138.5489 g/mol (0.13855 kg/mol)

Calculation of the relative molecular and molar mass of ClKO4

• Mr[ClKO4] = Ar[Cl] + Ar[K] + Ar[O] * 4 = 35.453 + 39.0983 + 15.9994 * 4 = 138.5489
• Molar mass (kg/mol) = Mr[ClKO4] : 1000 = 138.5489 : 1000 = 0.13855 kg/mol

ClKO4: percent composition by element

• Chlorine (Cl) = 35.453 : 138.5489 * 100 = 25.589 %
• Potassium (K) = 39.0983 : 138.5489 * 100 = 28.22 %
• Oxygen (O) = 63.9976 : 138.5489 * 100 = 46.191 %

Molar mass calculator