Upon dissolving InCl(s) in HCl, In+ (aq) undergoes a disproportionation reaction according to the following balanced equation: 3In+ (aq) → 2In(s) + In3+(aq) This disproportionation follows first-order kinetics with a half-life of 667 s. (a) What is the concentration of In+ (aq) after 1.22 h if the initial solution of In+ (aq) was prepared by dissolving 2.38 g InCl(s) in dilute HCl to make 5.00 x 102 mL of solution? (b) What mass of In(s) is formed after 1.22 h?

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