Question

"how many liters of a 0.2 m naoh solution are needed in order to have 0.4 moles of naoh?"

Answer 1

2

Step-by-step explanation:

well since the question has given you the concentration of the solution 0.2mol/L and the wanted amount (moles) of naoh(0.4mol) you are able put this into the formula n=cV; where n is the moles of naoh the solution, c is the concentraton of the solution and V is the volume of the solution in litres.

therefore the for the solution to have 0.4 moles of naoh you put it into the formula, giving you:

0.4 = 0.2V

V = 2

V = 2 litres