Final answer:
Molarity is determined by dividing the number of moles of solute by the volume of the solution in liters. For a solution with 1.457 mol KCl in 1.500 L, the molarity is approximately 0.9713 M option (b).
Step-by-step explanation:
The molarity of a solution is defined as the number of moles of solute per liter of solution. To calculate the molarity, you can use the formula:
Molarity (M) = Moles of solute (mol) / Volume of solution (L)
For example, to determine the molarity of a solution with 1.457 mol KCl in 1.500 L of solution, you would divide the moles of KCl by the volume of the solution:
Molarity = 1.457 mol / 1.500 L = 0.9713 M
So, the molarity of the KCl solution is approximately 0.9713 M.