Need help with these, please. 1).A solution contains 0.0387 M HNO3, 0.0222 M HI, and 0.280...

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Question

Need help with these, please.

1).A solution contains 0.0387 M HNO₃, 0.0222 M HI, and 0.280 M formic acid, HCOOH. What is the pH?

2). A solution contains 0.100 M Ba(OH)₂ (strong base) and 0.230 M ammonia, NH₃ (weak base). What is the pH?

3). Calculate the approximate [OH^-] and [NH₄⁺] in a 0.49 M ammonia solution, NH₃(aq).

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

science chemistry

Answer 1

Answer #1

Answer 2

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