What is the molar mass of HF?

The molar mass of HF, the chemical formula for hydrogen fluoride, is about 20 grams per mole. The molar mass can be determined by adding the atomic mass of each atom in the compound.

Hydrogen, represented by the chemical symbol H, has an atomic mass of 1 gram per mole. Fluorine, represented by the chemical symbol Fl, has an atomic mass of 18.99 grams per mole. Adding together 1 gram per mole and 18.99 grams per mole results in the molar mass of hydrogen fluoride. About 94.96 percent of the molar mass of hydrogen fluoride comes from the fluorine atom.