1. What volume of 1.00 M HNO2 when diluted to 100.00 mL in a volumetric flask would yield a 0.275 M HNO2 solution? 2. A solution of NaCN has a pH of 9.20. Find the [H] in the solution. Is the solution acidic or basic? 3. A 0.010M solution of the weak acid HA has a pH of 3.80. What is the percent dissociation of HA in the solution? 4. a. Write the hydrolysis reaction that occurs in a solution of NH3. b. Write the hydrolysis reaction that occurs in a solution of NaNO₂. 5. Why is often the case that distilled water has a pH of less than 7 in the lab?

1. What volume of 1.00 M HNO2 when diluted to 100.00 mL in a volumetric flask would yield a 0.275 M HNO2 solution? 2. A solution of NaCN has a pH of 9.20. Find the [H] in the solution. Is the solution acidic or basic? 3. A 0.010M solution of the weak acid HA has a pH of 3.80. What is the percent dissociation of HA in the solution? 4. a. Write the hydrolysis reaction that occurs in a solution of NH3. b. Write the hydrolysis reaction that occurs in a solution of NaNO₂. 5. Why is often the case that distilled water has a pH of less than 7 in the lab?

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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