Question

1. What volume of 17.4 M HCl should be used to prepare 500 mL of a 6.00 M solution of HCl?

            A.        1450 mL

            B.        209 mL

            C.        0.209 mL

            D.        172 mL

            E.         2.9 mL

2. A student removes 25 mL of 3.0 M NaOH and dilutes it to a final volume of 350 mL. What is the concentration of the resulting solution.?

            A.        42 M

            B.        0.024 M

            C.        75 M

            D.        0.10 M

            E.         0.21 M

3. How many moles of Na₂SO₄are required to make a solution with a concentration of 0.35 M Na⁺ions?

            A.        0.35 M

            B.        0. 18 M           

            C.        0.12 M

            D.        1.1 M  

            E.         0.70 M