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To measure the amount of calcium carbonate (CaCO3) in a seashell, an analytical chemist crushes a 3.100 g sample of the shell to a fine powder and titrates to the endpoint with 120. ml. of 0.4500M hydrogen chloride (HCI) solution. The balanced chemical equation for the reaction is: 2HCl(aq) + CO (aq) → H₂CO3(aq) + 2Cl(aq) - What kind of reaction is this? If you said this was a precipitation reaction, enter the chemical formula of the precipitate. If you said this was an acid-base reaction, enter the chemical formula of the reactant that is acting as the base. If you said this was a redox reaction, enter the chemical symbol of the element that is oxidized Calculate the mass percent of CaCO, in the sample. Be sure your answer has the correct number of significant digits. Oprecipitation O acid-base Oredox 0 0 0 0% 7 X

To measure the amount of calcium carbonate (CaCO3) in a seashell, an analytical chemist crushes a 3.100 g sample of the shell to a fine powder and titrates to the endpoint with 120. ml. of 0.4500M hydrogen chloride (HCI) solution. The balanced chemical equation for the reaction is: 2HCl(aq) + CO (aq) → H₂CO3(aq) + 2Cl(aq) - What kind of reaction is this? If you said this was a precipitation reaction, enter the chemical formula of the precipitate. If you said this was an acid-base reaction, enter the chemical formula of the reactant that is acting as the base. If you said this was a redox reaction, enter the chemical symbol of the element that is oxidized Calculate the mass percent of CaCO, in the sample. Be sure your answer has the correct number of significant digits. Oprecipitation O acid-base Oredox 0 0 0 0% 7 X

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter17: Principles Of Chemical Reactivity: Other Aspects Of Aqueous Equilibria
Section: Chapter Questions
Problem 97GQ: A solution contains Ca2+ and Pb2+ ions, both at a concentration of 0.010 M. You wish to separate the...
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To measure the amount of calcium carbonate (CaCO3) in a seashell, an analytical chemist crushes a 3.100 g sample of the shell to a fine powder and titrates it to the endpoint with 120. ml. of 0.4500M hydrogen chloride (HCI) solution. The balanced chemical equation for the reaction is: 2HCl(aq) + Cơ, lạng) - What kind of reaction is this? H₂CO3(aq) + 2Cl (aq) If you said this was a precipitation reaction, enter the chemical formula of the precipitate. If you said this was an acid-base reaction, enter the chemical formula of the reactant that is acting as the base. If you said this was a redox reaction, enter the chemical symbol of the element that is oxidized. Calculate the mass percent of CaCO, in the sample. Be sure your answer has the correct number of significant digits. Oprecipitation O acid-base O redox 0 0 0 0% 9. 5
Transcribed Image Text:To measure the amount of calcium carbonate (CaCO3) in a seashell, an analytical chemist crushes a 3.100 g sample of the shell to a fine powder and titrates it to the endpoint with 120. ml. of 0.4500M hydrogen chloride (HCI) solution. The balanced chemical equation for the reaction is: 2HCl(aq) + Cơ, lạng) - What kind of reaction is this? H₂CO3(aq) + 2Cl (aq) If you said this was a precipitation reaction, enter the chemical formula of the precipitate. If you said this was an acid-base reaction, enter the chemical formula of the reactant that is acting as the base. If you said this was a redox reaction, enter the chemical symbol of the element that is oxidized. Calculate the mass percent of CaCO, in the sample. Be sure your answer has the correct number of significant digits. Oprecipitation O acid-base O redox 0 0 0 0% 9. 5
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