What is the conjugate acid of the hydroxide ion? A. H3O+ B. OH- C. H3O D. OH E. H2OWhat is the value of the equilibrium constant for the autoionization of water at 25°C? A. 1.0 × 10-7 B. 1.0 × 10-14

What is the conjugate acid of the hydroxide ion? A. H3O+ B. OH- C. H3O D. OH E.

H2OWhat is the value of the equilibrium constant for the autoionization of water at 25°C? A. 1.0 × 10-7 B. 1.0 × 10-14 C. 1.0 × 1014 D. 1.0 × 107 E. 14What is the [H3O+] for a solution at 25°C that has pOH = 5.640? A. 2.34 × 10-4 M B. 2.29 × 10-6 M C. 4.37 × 10-9 M D. 4.27 × 10-11 M E. 8.360 M Acid strength decreases in the series HI > HSO4 – > HF > HCN. Which of these anions is the weakest base? A. I – B. SO4 2- C. F- D. CNWhich is the weakest acid? A. HBrO3 B. HClO C. HBrO2 D. HBrO E. HClO3 Find the pH of a 0.0075 M aqueous solution of hypochlorous acid (HClO), for which Ka = 3.5 × 10-8 . A. 1.25 B. 3.28 C. 1.17 D. 4.79 E. 1.64 

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