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3. What is the concentration of H+ in a 2.5 M HCl solution?


A. 0
B. 1.3 M
C. 2.5 M
D. 5.0 M
E. 10 .M

.

4. What is the OH- ion concentration in a 5.2 ´ 10-4 M HNO3 solution?


A. 1.9 ´ 10-11 M
B. 1.0 ´ 10-7 M
C. 5.2 ´ 10-4 M
D. zero
E. 1.0 ´ 10-4 M