9/15 Concept Test Questions

1. How many grams of CuSO4.5H2O must you weigh out in order to prepare 100.0 mL of a 0.10 M CuSO4 solution? (MM: CuSO4.5H2O = 250 g/mol)
A) 250 g
B) 25 g
C) 2.5 g
D) 0.25 g

2. How many mL of commercial HCl (12.0 M) should you use to prepare 240.0 mL of 0.10 M HCl?
A) 1.2 x 10-4 L
B) 1.2 x 10-3 L
C) 2.0 x 10-3 L
D) 2.4 x 10-3 L