Chapter 14 Quiz Acids and Bases

Chapter 14 Quiz Acids and Bases 1. Which of the following is the strongest acid found in dilute aqueous solution? Select only the best answer: H 2 SO 4 HCl H 3 O + HNO 3 HF 2. If the concentration of H 3 O + in aqueous solution is 10 -5 M, then the pH is Enter the exact value. ⓘ . 3. Which of the following conjugate bases of weak acids is the strongest base? Select only the best answer: SO 3 2- CH 3 COO - NO 2 - HS - HCOO - 4. If the pK a of a weak acid HX (aq) is 4.7 what is the pK b for its conjugate base, X - (aq) ? Enter the exact value. ⓘ 5. Acetic acid is a classic example of a Enter the correct word or phrase: type of acid because it can donate a proton to water, forming H 3 O + (aq) . 6. Which two of the following mixtures would be considered buffer solutions? Select all of the correct answers: HCl + NaOH HCl + NaCl HNO 3 + NaNO 3 HF + NaF