1. Explain the expected relative conductivity of 0.10 mol/L samples of hydrobromic acid, benzoic acid, and hydrocyanic acid. Answer (3 marks. Using the five-step method, predict the predominant Bronsted-Lowry acid base reaction when solutions of ammonium chloride and sodium hydrogen carbonate are combined. )Identify one conjugate acid-base pair from the reaction equation. Predict whether the equilibrium will favour the formation of the reactants or products. Support and explain your answer. Write two Bronsted-Lowry reaction equations illustrating the fact that the dihydrogen phosphate ion (H2PO4-(aq)) is amphiprotic. In both equations, products should be favoured Calculate the pH of a 0.35 mol/L solution of nitric acid Calculate the pH of a 0.35 mol/L solution of butanoic acid. Answer (4 marks) Explain why the pH of the acids in Questions 4 and 5 are different, even though their concentrations are the same. How would the conductivity of each solution differ? Answer (3 marks)
Chem 30 Unit
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