# How many moles of sodium hydroxide are in 500 mL of a 2.0 M NaOH solution?

Apr 4, 2016

$\text{1 mol}$ of $\text{NaOH}$.

#### Explanation:

We calculate the mass of $\text{NaOH}$, using the molarity formula.

["NaOH"] = "mol solute"/"L solution"

$\text{2 M" = (x " mol NaOH")/"0.500 L}$

$2 \times \text{0.500 mol" = x " mol NaOH}$

$x = \text{1 mol NaOH}$