Question

what is the molarity of the solution formed by mixing .20 moles of NaOH with enough water to make 150 ml of solution​

Answer 1

Answer:

6.66 M

Explanation:

1 mol of NaOH = 40 g

0.2 M of NaOH = 8 g

If 40 g of NaOH is dissolved in 1000 mL the solution will be 1M

8 g of NaOH is dissolved in 1000 mL to make 0.2 M solution

8 g of NaOH when dissolved in 150 mL will make 1.33 M solution

0.2 M x 1000 mL = 150 mL x unknown molarity