Question

CHM 112 Homework Set W8 Due 1. Determine the hydroxide ion concentration, hydronium ion concentration and the pH of a solution that is 0.10 M NaCH CO Inclade a chemical equation showing the relevant equilibrium. Hint: sodium is a spectator ion (it is not part of the equilibrium). You will need the Ks value for acetate ion. 2. For each of the following pairs, choose (circle or underline) the solution that has the lowest pH (most acidic or least basic). 0.1 M NH 0.1 M NH Br 0.1 M Fe(NO) 0.1 M Na2HPO A) 0.1 M KNO B) 0.1 M NaCIO C) 0.1 M KCI D) 0.1 NaHzPO E) 0.2 M KOH 0.1 M KOH F) 0.1 M HCI 0.1 M HF G) 0.1 M NaOH 0.1 M NH3 H) 0.1 M acid i (K, 히04) 0.1 M acid 2 (K-103) 0.1 M base 1 (pK 4.7) 0.1 M base 2 (pK> 3.7)

Answer 1

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