Question

What is the molarity of a 2.0 L sodium hydroxide solution containing 10.0 grams of solute?

Answer 1

0.125 M

Step-by-step explanation:

Molarity or concentration is given by;

= Moles/volume in litres

But; moles = mass/Relative formula mass

= 10.0/40.0

= 0.25 Moles

Molarity = 0.25 moles/2.0 L

= 0.125 M