Seashells are made up of mostly CaCO3 (100.09 g/mol) and a substance called chitin which contains C, H, O and N. To determine the percentage of CaCO3present in a seashell, gravimetric analysis is performed by dissolving a shell in acid followed by treatment with NaC2O4 (134 g/mol) to produce solid CaC2O4 (128.1 g/mol). If a 514 g seashell found in Ocean City, MD undergoes this analysis to produce 598 g of CaC2O4, what is the percentage of CaCO3 in the shell? Assume 100% yield for the reaction. Report your answer to the tenths place and do not include the % sign.
Seashells are made up of mostly CaCO3 (100.09 g/mol) and a substance called chitin which contains C, H, O and N. To determine the percentage of CaCO3present in a seashell, gravimetric analysis is performed by dissolving a shell in acid followed by treatment with NaC2O4 (134 g/mol) to produce solid CaC2O4 (128.1 g/mol). If a 514 g seashell found in Ocean City, MD undergoes this analysis to produce 598 g of CaC2O4, what is the percentage of CaCO3 in the shell? Assume 100% yield for the reaction. Report your answer to the tenths place and do not include the % sign.
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter4: Reactions In Aqueous Solution
Section: Chapter Questions
Problem 78QAP: When 85.0 mL of 0.250 M Ba(OH)2 solution is added to 85.00 mL of 0.250 M Al (NO3)3 solution, a white...
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Seashells are made up of mostly CaCO3 (100.09 g/mol) and a substance called chitin which contains C, H, O and N. To determine the percentage of CaCO3present in a seashell, gravimetric analysis is performed by dissolving a shell in acid followed by treatment with NaC2O4 (134 g/mol) to produce solid CaC2O4 (128.1 g/mol). If a 514 g seashell found in Ocean City, MD undergoes this analysis to produce 598 g of CaC2O4, what is the percentage of CaCO3 in the shell? Assume 100% yield for the reaction. Report your answer to the tenths place and do not include the % sign.
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