# Given a volume of mercury metal, how do I find its molar quantity?

##### 1 Answer

Sep 25, 2016

#### Answer:

You need to find (i) the mass of the sample, and (ii) convert this mass into a molar quantity.

#### Explanation:

You have a 15 mL volume of metal, and so

And then you divide this mass by the molar mass of mercury to get an answer in moles:

The number of moles corresponds to a precise numerical quantity of mercury atoms. You need to use