A student prepared a stock solution by dissolving 10.0g of KOH in water to make 150. mL of solution. She then took 15.0 mL of the stock solution and...

A student prepared a stock solution by dissolving 10.0g of KOH in water to make 150. mL of solution. She then took 15.0 mL of the stock solution and diluted it with enough water to make 65.0 mL of a final solution. What is the concentration of KOH for the final solution