a) The pH solution is 5.28 at equivalence point. Identify the correct type of acid-base pair titration with the correct examples. b) An analytical chemist need to determine the content of calcium carbonate present in a 0.125 g eggshell sample. The sample was dissolved in a 50.00 mL of 0.200 M of hydrochloric acid, first standard reagent. The next analysis is titration of the excess acid which required 32.12 mL of 0.250 M sodium hydroxide, the second reagent. Calculate the percentage by weight the purity of calcium carbonate in the eggshell sample. CaCO3 + 2HCl → CaCl₂ + CO₂ + H₂O

a) The pH solution is 5.28 at equivalence point. Identify the correct type of acid-base pair titration with the correct examples. b) An analytical chemist need to determine the content of calcium carbonate present in a 0.125 g eggshell sample. The sample was dissolved in a 50.00 mL of 0.200 M of hydrochloric acid, first standard reagent. The next analysis is titration of the excess acid which required 32.12 mL of 0.250 M sodium hydroxide, the second reagent. Calculate the percentage by weight the purity of calcium carbonate in the eggshell sample. CaCO3 + 2HCl → CaCl₂ + CO₂ + H₂O

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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