What is the formula and molar mass of beryllium chloride?

1 Answer
Dylan K.
Dec 5, 2016

BeCl2 has a molar mass of 79.9176 amu

Explanation:

Recall that the formula mass is the sum of the atomic weights of the atoms in substance while it is in its empirical formula, and that the atomic mass is the weight of precisely one mol of the substance.

We have Beryllium chloride which is an ionic compound that forms a crystal lattice, the formula BeCl2 tells us that BeCl2 is the simplest repeating unit that forms the crystal lattice.

Since this is an ionic compound, BeCl2 is a formula unit, not a molecular formula.

It's mass is 79.9175 amu.

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