Determine the molarity of a 2.15-L aqueous solution containing 1.45 moles of KCl.
The definition is M = moles/L. Substitute and punch in your calculator and you have it.
12.90
To determine the molarity of a solution, you need to divide the number of moles of solute by the volume of the solution in liters.
In this case, you are given the volume of the solution (2.15 L) and the number of moles of solute (1.45 moles of KCl).
So, to find the molarity:
Molarity (M) = Moles of solute / Volume of solution
Molarity (M) = 1.45 moles / 2.15 L
Calculating this, we can find:
Molarity (M) = 0.674 M
Therefore, the molarity of the solution containing 1.45 moles of KCl in a 2.15-L aqueous solution is 0.674 M.