To measure the amount of calcium carbonate CaCO3 in a seashell, an analytical chemist crushes a 4.300g sample of the shell to a fine powder and titrates it to the endpoint with 605.mL of 0.100M hydrogen chloride HCl solution. The balanced chemical equation for the reaction is: 2HClaq + CO2−3aq + H2CO3aq -> 2Cl−aq Calculate the mass percent of CaCO3 in the sample.
To measure the amount of calcium carbonate CaCO3 in a seashell, an analytical chemist crushes a 4.300g sample of the shell to a fine powder and titrates it to the endpoint with 605.mL of 0.100M hydrogen chloride HCl solution. The balanced chemical equation for the reaction is: 2HClaq + CO2−3aq + H2CO3aq -> 2Cl−aq Calculate the mass percent of CaCO3 in the sample.
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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To measure the amount of calcium carbonate
CaCO3
in a seashell, an analytical chemist crushes a
4.300g
sample of the shell to a fine powder and titrates it to the endpoint with
605.mL
of
0.100M
hydrogen chloride
HCl
solution.
The balanced chemical equation for the reaction is:
2HClaq + CO2−3aq + H2CO3aq -> 2Cl−aq
Calculate the mass percent of
in the sample. Be sure your answer has the correct number of significant digits.
CaCO3
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