Answer:
The correct answer is 0.506 L
Explanation:
The solution has a molarity of 0.750 M. That means that there are 0.750 moles of solute (NaCl) per liter of solution:
0.750 M = 0.750 moles NaCl/ 1 liter solution
If the student needs 0.380 moles-which is lesser than 0.750 moles- less than 1 liter of solution should be used. We can calculate the volume in liters the student needs by simply dividing the moles into the molarity of solution as follows:
V = 0.380 moles NaCl x (1 L/0.750 moles NaCl) = 0.506 L
