A student is told to use 20.0 grams of sodium chloride to make an aqueous solution that has a concentration of 10.0 grams of sodium chloride per liter of solution.
Assuming that 20.0 grams of sodium chloride has a volume of 7.5 milliliters, about how much water will she use in making this solution?
A) 9.25 L
B) 9.5 L
C) 9.9925 L
D) 10 L
Question 2
What is the molarity when water is added to 2 moles of sodium chloride to make 0.5 liter of solution?
A) 8 M
B) 4 M
C) 5 M
D) 2.5 M