Need help with these, please. 1).Calculate the approximate [OH-] and [NH4+] in a 0.11 M ammonia...

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Need help with these, please.

1).Calculate the approximate [OH^-] and [NH₄⁺] in a 0.11 M ammonia solution, NH₃(aq).

NH₃(aq) + H₂O(l) ↔ OH^-(aq) + NH₄⁺(aq). K_b = 1.75 x 10^-5M.

2). Calculate the pH of 0.136 M phosphoric acid (H₃PO₄, a triprotic acid). K_a1 = 7.5 x 10^-3, K_a2 = 6.2 x 10^-8, and K_a3 = 4.8 x 10^-13.

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Answer 1

Answer #1

Answer 2

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