28. A student prepares 2.00 L of a solution containing 0.440 mol of sodium formate (HCOONa) and sufficient formic acid (HCOOH) to give pH 3.61. The student wishes to adjust the solution to pH 4.00. How many moles of NaOH(s) must be added? (Assume no volume change on addition of solid NaOH.) Data: K.(HCOOH) = 1.8 × 10 A) 0.28 B) 0.096 C) 0.36 D) 0.16 E) 0.23

28. A student prepares 2.00 L of a solution containing 0.440 mol of sodium formate (HCOONa) and sufficient formic acid (HCOOH) to give pH 3.61. The student wishes to adjust the solution to pH 4.00. How many moles of NaOH(s) must be added? (Assume no volume change on addition of solid NaOH.) Data: K.(HCOOH) = 1.8 × 10 A) 0.28 B) 0.096 C) 0.36 D) 0.16 E) 0.23

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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