7:22 PM Sun Oct 2493%A d6d35969-50ee-4130-9485-bf62d1fb0bdb.filesusr.com7.Calculate the Ksp for zinc hydroxide if the solubility of Zn (OH)2 in pure water is 2.1 × 10-4 g/L.3.8 x 10-178. Formic acid (HCO2H, Ką = 1.8 x 10-4) is the principal component in the venom of stinging ants.What is the molarity of a formic acid solution if 25.00 mL of the formic acid solution requires 29.80 mL of0.0567 M NaOH to reach the equivalence point?a.Answer: 0.0676 M7b. Calculate the pH after 40.0 mL of NaOH was added?Answer: 12.06What is the pH of the resulting solution if 40.0 mL of 0.432 M methylamine, CH3NH2, is added to 15.0mLof 0.234 M HCI? Assume that the volumes of the solutions are additive. Ka = 2.70 x 10-11 for CH3NH3+.9.Answer: 11.16

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Calculate the Ksp for zinc hydroxide if the solubility of Zn (OH)2 in pure water is 2.1 x 10-4 g/L. 3.8 x 10-17 7.

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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Question

7:22 PM Sun Oct 24
93%
A d6d35969-50ee-4130-9485-bf62d1fb0bdb.filesusr.com
7.
Calculate the Ksp for zinc hydroxide if the solubility of Zn (OH)2 in pure water is 2.1 × 10-4 g/L.
3.8 x 10-17
8. Formic acid (HCO2H, Ką = 1.8 x 10-4) is the principal component in the venom of stinging ants.
What is the molarity of a formic acid solution if 25.00 mL of the formic acid solution requires 29.80 mL of
0.0567 M NaOH to reach the equivalence point?
a.
Answer: 0.0676 M
7
b. Calculate the pH after 40.0 mL of NaOH was added?
Answer: 12.06
What is the pH of the resulting solution if 40.0 mL of 0.432 M methylamine, CH3NH2, is added to 15.0mL
of 0.234 M HCI? Assume that the volumes of the solutions are additive. Ka = 2.70 x 10-11 for CH3NH3+.
9.
Answer: 11.16

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