A barium hydroxide solution is prepared by dissolving 3.40 g of Ba(OH)2 in water to make 68.6mL of solution

Question

What is the concentration of the solution in units of molarity?

Answer 1

So, there are three steps to arrive at the answer:

1) find the molar mass of Ba(OH)₂

2) use the molar mass to find the number of moles of Ba(OH)₂ that you are dissolving

3) realize that molarity = # moles of solute / volume of solution

Hope this helps!