Question

What is the molarity of a solution made by dissolving 8.0 g of naoh in 0.5 l?

Answer 1

Answer:- Molarity of the solution is 0.4M.

Solution:- Molarity is moles of solute per liter of solution.

8.0 grams of NaOH are in 0.5 L of solution. Let's convert grams to moles and divide by liters to get the molarity of the solution.

Calculations for moles of NaOH:

`8.0gNaOH((1mol)/(40g))`

= 0.2 mol NaOH

Calculations for molarity:

`(0.2mol)/(0.5L)`

= 0.4M

M stands for molarity.

So, the molarity of the NaOH solution is 0.4M.