Question

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

Answer 1

Answer:

1 mole of bromine atoms

has a mass of  

79.9⋅g.

Explanation:

Of course, we normally encounter bromine as the bromine molecule,  Br2.

As to your question, the mass is simply the product of moles and atomic mass:  

0.95⋅mol×159.8⋅g⋅mol−1≅150⋅g

Bromine is one of the few elements that is a liquid under normal conditions. There are few things in a laboratory that are as dangerous and corrosive as neat bromine. If you have to use it, you should treat it with some respect.