AP Chemistry
8.5 Acid-Base Titrations
8.4 Acid-Base Reactions and Buffers
A student prepares two separate aqueous mixtures at \(25\text{ }^\circ\text{C}\).
Mixture 1 is prepared by combining \(50.0\text{ mL}\) of \(0.10\text{ M }\text{CH}_3\text{COOH(aq)}\) with \(50.0\text{ mL}\) of \(0.10\text{ M }\text{NaOH(aq)}\).
Mixture 2 is prepared by combining \(50.0\text{ mL}\) of \(0.10\text{ M }\text{NH}_3\text{(aq)}\) with \(50.0\text{ mL}\) of \(0.10\text{ M }\text{HCl(aq)}\).
Which of the following correctly predicts and explains the \(\text{pH}\) of each mixture at \(25\text{ }^\circ\text{C}\)?
Mixture 1 is prepared by combining \(50.0\text{ mL}\) of \(0.10\text{ M }\text{CH}_3\text{COOH(aq)}\) with \(50.0\text{ mL}\) of \(0.10\text{ M }\text{NaOH(aq)}\).
Mixture 2 is prepared by combining \(50.0\text{ mL}\) of \(0.10\text{ M }\text{NH}_3\text{(aq)}\) with \(50.0\text{ mL}\) of \(0.10\text{ M }\text{HCl(aq)}\).
Which of the following correctly predicts and explains the \(\text{pH}\) of each mixture at \(25\text{ }^\circ\text{C}\)?
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