Chemistry Like aqueous solutions of Fe3+, bismuth ions (Bi3+) form acidic solutions with a pKa = 1.5. (a) Write a balanced net ionic equation for the reaction of Bi3+ with water to form a dication, [Bi(H2O)5OH]2+. (b) What is the pH of a 0.00364 M solution of Bi3+? (c) How is the acidity of this solution (0.00364 M Bi3+ ions) related to the acidity of a 0.00364 M acetic acid aqueous solution? A.   Bi3+ is less acidic than acetic acid. B.   Bi3+ is more acidic than acetic acid. C.   There is not enough information to tell which is more acidic. D.   Bi3+ and acetic acid have the same acidity.

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