Question

How would you make 500 mL of a 2.00 M sodium hydroxide solution?

Answer 1

See below.

Explanation:

To make 500 mL of 2.00 M `NaOH` solution, you need to make sure that every litre of the solution contains 2.00 mol of `NaOH`.

So, 1 L of 2.00 M `NaOH` solution contains `2.00 xx ("23.0 + 16.0 + 1.0) g NaOH"`.

And 500 mL of 2M `NaOH` solution contains `80.0/2color(white)(l) "g NaOH" = "40.0 g of NaOH"`.

So, If we mix 40.0 g of `NaOH` with enough distilled water to make 500 mL, we will get a 2.00 M `NaOH` solution.