Molar mass of perchloric acid (HClO4)

The molar mass of perchloric acid (HClO4) is 100.454 g/mol.

Step-by-step calculation

ElementAtomsAtomic massSubtotal
Hydrogen × 1 1.008 = 1.008
Chlorine × 1 35.45 = 35.45
Oxygen × 4 15.999 = 63.996
Total100.454 g/mol

Percent composition by element

  • Hydrogen 1%
  • Chlorine 35.29%
  • Oxygen 63.71%

Try another formula

H2O NaCl CO2 C6H12O6 H2SO4 Ca(OH)2 CuSO4·5H2O C8H10N4O2

Could not read that formula

Related compounds

HClO Hypochlorous acid HClO3 Chloric acid CoCl2·6H2O Cobalt(II) chloride hexahydrate CuCl2·2H2O Copper(II) chloride dihydrate BaCl2·2H2O Barium chloride dihydrate CaCl2·2H2O Calcium chloride dihydrate

FAQ

What is the molar mass of HClO4?

The molar mass of perchloric acid (HClO4) is 100.454 g/mol.

How do you calculate the molar mass of HClO4?

Multiply the atomic mass of each element by the number of its atoms in HClO4, then add the results: 1 × 1.008 (H) + 1 × 35.45 (Cl) + 4 × 15.999 (O) = 100.454 g/mol.

What percentage of HClO4 is Oxygen?

Oxygen makes up 63.71% of the mass of perchloric acid (HClO4).