# What is the molar mass of benzene?

Aug 10, 2017

$78.114$ $\text{g/mol}$

#### Explanation:

To find the molar mass of a compound, we first look at a periodic table to find the molar masses of each element in the compound:

The chemical formula for benzene is

ul("C"_6"H"_6

So we need only look at the values for carbon and hydrogen.

We find that the molar masses are

• $\text{C} :$ $12.01$ $\text{g/mol}$

• $\text{H} :$ "1.01 $\text{g/mol}$

We need to multiply these values by however many of each element there is in the compound, so we would then have

• $\text{C} :$ $12.011 \textcolor{w h i t e}{l} \text{g/mol" xx 6 = color(red)(ul(72.066color(white)(l)"g/mol}$

• $\text{H} :$ $1.008 \textcolor{w h i t e}{l} \text{g/mol" xx 6 = color(green)(ul(6.048color(white)(l)"g/mol}$

Finally, we add all the component elements up:

color(red)(72.066color(white)(l)"g/mol") + color(green)(6.048color(white)(l)"g/mol") = color(blue)(ulbar(|stackrel(" ")(" "78.114color(white)(l)"g/mol"" ")|)