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D Question 42 1 pts Which one of the following salts does not give a neutral solution when it is dissolved in water? о вас all give neutral solutions OKNO NaBr O NH OH Question 43 1 pts Calculate the pH of the following aqueous salt solution: 0.91 M NaF (K, for HF = 7.24 x 104 none of these 10.90 O 5.45 03.10 8.55 HO 96 5 & 7 4 6 8 9 R T Y

Question 40 1 pts Calculate the pow of a 0.30 M solution of acetic acid (K - 1.8 10-5). O 11.37 O 8.73 5.27 none of these 2.63 D Question 41 1 pts The pain killer morphine is a weak base when added to water. The Kb is 1.6 x 10-6. What is the pH of a 5.08 x 10-M solution of morphine? 09.80 O 9.95 O none of these 5.91 0 4.05 DAN SO 0: & 7 5 6 8 R 20 T Y