# What is the mass (g) of 0.95 mol of the element bromine (Br)?

Oct 1, 2016

$\text{1 mole of bromine atoms}$ has a mass of $79.9 \cdot g$.
Of course, we normally encounter bromine as the bromine molecule, $B {r}_{2}$.
As to your question, the mass is simply the product of moles and atomic mass: $0.95 \cdot \cancel{m o l} \times 159.8 \cdot g \cdot \cancel{m o {l}^{-} 1}$ $\cong$ $150 \cdot g$