# Question #d755f

##### 1 Answer

Feb 17, 2016

#### Answer:

375 mL of water is needed.

#### Explanation:

Using the dilution formula, calculate first for the amount of 2.0 M NaOH needed to prepare 500 mL of 0.5M NaOH solution:

let:

So then:

Then to calculate for the volume of water needed, subtract the volume of the final solution with the computed volume of 2.0 M NaOH needed: