Assignment:
Question 1. Conjugate Acid-Base Pairs. Identify the conjugate acid-base pairs in each of the following reactions. Label each species as an acid or a base.
a. NH4+(aq) + CN-(aq) --> NH3(aq) + HCN(aq)
b. CH3COOH(aq) + F-(aq) --> CH3COO-(aq) + HF(aq)
c. HPO42-(aq) + H2O(l) --> H2PO4-(aq) + OH-(aq)
d. NH3(aq) + SO4 2-(aq) --> NH2-(aq) + HSO4-(aq)
Question 2. Relative Strengths of Acids and Bases. For each of the following reactions, decide which species (reactants or products) are favored at the completion of the reaction. In other words, will the reactions go from left-to-right or right-to-left?
a. HNO2(aq) + HS-(aq) --> NO2-(aq) + H2S(aq)
b. HClO(aq) + H2O(l) --> ClO-(aq) + H3O+(aq)
c. NH4+(aq) + H2PO4-(aq) --> NH3(aq) + H3PO4(aq)
d. HCO3-(aq) + S2-(aq) --> CO32-(aq) + HS-(aq)
Question 3. Calculating [H3O+] and [OH-]. Suppose a bottle is labeled 3.50 x 10-7 M M(OH)3, where M = an unknown metal. What are the values of [H3O+] and [OH-]?
Question 4. Calculating [H3O+], [OH-], and pOH. What are the values of pH, pOH, [H3O+], and [OH-] for a sample of carbonated water?
Question 5. Calculating [H3O+], [OH-], and pH. An over-the-counter medication has a pOH = 3.5. What is this medication and what are the values of pH, [H3O+], and [OH-]?
Provide complete and step by step solution for the question and show calculations and use formulas.