16.Kw and pH key

16.Kw and pH key - Chem 105 Nielson Recitation 11/29/07...

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Nielson Recitation 11/29/07 Gas-forming acid-base reactions Amine salts Kw [H 3 O + ], [ - OH] pH, pOH 1. Carbonic acid and sulfurous acid both decompose to form a gas and water. a. Write the molecular formula for carbonic acid and for sulfurous acid. carbonic acid = H 2 CO 3 sulfurous acid = H 2 SO 3 b. Write the decomposition products of each of these acids. H 2 CO 3 (aq) --------> CO 2 (g) + H 2 O(l) H 2 SO 3 (aq) --------> SO 2 (g) + H 2 O(l) c. Write the balanced equation for the gas-forming acid-base reactions below. Acetic acid and sodium hydrogen carbonate: CH 3 COOH (aq) + NaHCO 3 (aq) --------> CH 3 COONa (aq) + CO 2 (g) + H 2 O (l) Hydrochloric acid and potassium sulfite: 2 HCl (aq) + K 2 SO 3 (aq) ---------> 2 KCl (aq) + SO 2 (g) + H 2 O (l) 2. Write the amine salts produced from the reaction of HCl with the following amines. a. CH 3 NH 2 + HCl CH 3 NH 3 Cl b. N + HCl H N Cl c. + HCl
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16.Kw and pH key - Chem 105 Nielson Recitation 11/29/07...

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