4) Which one of the following statements is TRUE? A) A buffer is an aqueous solution composed of two weak acids. B) A buffer can absorb an unlimited amount of acid or base. C) A buffer resists pH change by neutralizing added acids and bases. D) A buffer does not change pH when strong acid or base is added. E) None of the above are true. 5) When titrating a monoprotic strong acid with a weak base at 25°C, the (HINT: Give this some thought, because it's a different combination than we usually looked at.) A) pH will be 7 at the equivalence point. B) pH will be greater than 7 at the equivalence point. C) titration will require more moles of the base than acid to reach the equivalence point. D) titration will require more moles of acid than base to reach the equivalence point. E) pH will be less than 7 at the equivalence point. 6) Which of the following compounds will have the highest molar solubility in A) PbSO4, Ksp = 1.82 × 10-8 B) MgCO3, Ksp = 6.82 × 10-6 C) Agl, Ksp = 8.51 × 10-17 D) PbS, Ksp = 9.04 × 10-29 E) FeS, Ksp = 3.72 × 10-19 pure water?

4) Which one of the following statements is TRUE? A) A buffer is an aqueous solution composed of two weak acids. B) A buffer can absorb an unlimited amount of acid or base. C) A buffer resists pH change by neutralizing added acids and bases. D) A buffer does not change pH when strong acid or base is added. E) None of the above are true. 5) When titrating a monoprotic strong acid with a weak base at 25°C, the (HINT: Give this some thought, because it's a different combination than we usually looked at.) A) pH will be 7 at the equivalence point. B) pH will be greater than 7 at the equivalence point. C) titration will require more moles of the base than acid to reach the equivalence point. D) titration will require more moles of acid than base to reach the equivalence point. E) pH will be less than 7 at the equivalence point. 6) Which of the following compounds will have the highest molar solubility in A) PbSO4, Ksp = 1.82 × 10-8 B) MgCO3, Ksp = 6.82 × 10-6 C) Agl, Ksp = 8.51 × 10-17 D) PbS, Ksp = 9.04 × 10-29 E) FeS, Ksp = 3.72 × 10-19 pure water?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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