# How many grams are in 2.3 moles of phosphorus?

Feb 21, 2018

Great solvable question. Simply use the formula: $n = \frac{m}{M}$

Always use a periodic table as a reference when dealing with moles and mass numbers of the elements or compounds.

#### Explanation:

Phosphorus has a molar mass $\left(M\right)$ of $\text{30.973762 g/mol}$.

Therefore

$m = n \times M = \text{2.3 moles" xx "30.973762 g/mol" = "71 g}$