Molar and molecular weight of KC4H5O6

• Relative molecular weight of KC4H5O6: 188.1772
• Molar mass of KC4H5O6: 188.1772 g/mol (0.18818 kg/mol)

Calculation of the relative molecular and molar mass of KC4H5O6

• Mr[KC4H5O6] = Ar[K] + Ar[C] * 4 + Ar[H] * 5 + Ar[O] * 6 = 39.0983 + 12.0107 * 4 + 1.00794 * 5 + 15.9994 * 6 = 188.1772
• Molar mass (kg/mol) = Mr[KC4H5O6] : 1000 = 188.1772 : 1000 = 0.18818 kg/mol

KC4H5O6: percent composition by element

• Potassium (K) = 39.0983 : 188.1772 * 100 = 20.777 %
• Carbon (C) = 48.0428 : 188.1772 * 100 = 25.531 %
• Hydrogen (H) = 5.0397 : 188.1772 * 100 = 2.678 %
• Oxygen (O) = 95.9964 : 188.1772 * 100 = 51.014 %

Molar mass calculator