Answer: The molarity of the solution is 0.11 M.
Explanation: You first need to convert 65g of KCl to moles of KCl. When you do that you will get 0.871898055 moles of KCl, round anykind of answers you get at the end.
The second step is to use the molarity formula to find the molarity of the solution. Molarity = moles/liters
Molarity = 0.871898055 moles of KCl / 8.3 Liters of solution
M = 0.11
Make sure that your answer always has the correct number of significant figures. In the question both numbers given to you have 2 sig figs, therefore your final answer also needs to have 2 sig figs.