What is the concentration, in units of molarity, of a 500mL solution containing 0.750 moles of sodium chloride in water?
To determine the concentration of a solution in units of molarity (M), you need to divide the number of moles of solute by the volume of the solution in liters.
Step 1: Convert the volume of the solution to liters.
Given: 500 mL
Since 1 liter (L) is equal to 1000 milliliters (mL), divide 500 mL by 1000 to convert it to liters.
500 mL ÷ 1000 = 0.5 L
Step 2: Calculate the molarity (M) using the formula:
Molarity (M) = moles of solute / volume of solution (in L)
Given: 0.750 moles and 0.5 L
Molarity (M) = 0.750 moles / 0.5 L
Molarity (M) = 1.5 M
Therefore, the concentration of the solution containing 0.750 moles of sodium chloride in water is 1.5 Molarity (M).