pH of salt solutions, diprotic acids, Lewis acids/bases Answer the following questions: 1. State whether the...

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pH of salt solutions, diprotic acids, Lewis acids/bases Answer the following questions: 1. State whether the following salt solutions will be acidic, basic, or neutral: NH4NO3(aq), KBr(aq), NaNO₂(aq), CrCl(aq), LiCl(aq). NH4CN Kb6.2 x 10-10 for NH3 = 1.8 x 105, Ka for HCN = 6.2 x 10-¹⁰ 2. Calculate the pH of a 0.30 M solution of NH4Cl. (Kb for NH3 = 1.8 x 10-5) 3. Calculate the pH of a 0.050 M solution of NaCN. (Ka for HCN = 6.2 x 10-1⁰) 4. Arsenic acid, H-3ASO4, is used industrially to manufacture insecticides. Arsenic acid is a polyprotic acid with Ka1 = 2.5 x 104, Kaz = 5.6 x10, and Kas = 3.0 x 10-13. What is the concentration of the HASO2 and AsO4 in a solution whose initial arsenic acid concentration was 0.35 M? pH of salt solutions, diprotic acids, Lewis acids/bases Answer the following questions: 1. State whether the following salt solutions will be acidic, basic, or neutral: NH4NO3(aq), KBr(aq), NaNO₂(aq), CrCl(aq), LiCl(aq). NH4CN Kb6.2 x 10-10 for NH3 = 1.8 x 105, Ka for HCN = 6.2 x 10-¹⁰ 2. Calculate the pH of a 0.30 M solution of NH4Cl. (Kb for NH3 = 1.8 x 10-5) 3. Calculate the pH of a 0.050 M solution of NaCN. (Ka for HCN = 6.2 x 10-1⁰) 4. Arsenic acid, H-3ASO4, is used industrially to manufacture insecticides. Arsenic acid is a polyprotic acid with Ka1 = 2.5 x 104, Kaz = 5.6 x10, and Kas = 3.0 x 10-13. What is the concentration of the HASO2 and AsO4 in a solution whose initial arsenic acid concentration was 0.35 M?

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ANSWER 1 NH4NO3aq acidic KBraq neutral NaNO2aq basic CrClsaq acidic LiClaq neutral Explanation NH4NO3 is composed of the ammonium ion NH4 and the nitrate ion NO3 The ammonium ion is acidic so the solu... View the full answer