Molar mass of hydrobromic acid (HBr)

The molar mass of hydrobromic acid (HBr) is 80.912 g/mol.

hydrogen bromide

Step-by-step calculation

ElementAtomsAtomic massSubtotal
Hydrogen × 1 1.008 = 1.008
Bromine × 1 79.904 = 79.904
Total80.912 g/mol

Percent composition by element

  • Hydrogen 1.25%
  • Bromine 98.75%

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

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Related compounds

C27H28Br2O5S Bromothymol blue NaOH Sodium hydroxide NH3 Ammonia H2O Water H2SO4 Sulfuric acid HCl Hydrochloric acid

FAQ

What is the molar mass of HBr?

The molar mass of hydrobromic acid (HBr) is 80.912 g/mol.

How do you calculate the molar mass of HBr?

Multiply the atomic mass of each element by the number of its atoms in HBr, then add the results: 1 × 1.008 (H) + 1 × 79.904 (Br) = 80.912 g/mol.

What percentage of HBr is Bromine?

Bromine makes up 98.75% of the mass of hydrobromic acid (HBr).