5. An experiment is performed to measure the mass percent of Caco,(s) in eggshells. Five different samples of Caco,(s) of known mass react with an excess of 2.0M HCI(aq) in identical sealed, rigid reaction vessels. The pressure of the gas produced is measured with a pressure gauge attached to the reaction vessel. Since the reaction is exothermic, the reaction system is cooled to its original temperature before Cooling the HCl(aq) to a lower temperature than it was in the original experiment the pressure is recorded. The experimental data are used to create the calibration line below. Using eggshells that are more finely powdered than those used in the original experiment 0.10- E 0.09- 0.08- Using 2.0M CH,COOH(aq) instead of 2.0M HCl(aq) 0.07- 0.06- 5 0.05- 0.04 E0.03- Reducing the volume of the reaction vessel CLEAR ALL 0.02 os ++++ ++++ ++ 0.15 0.10 Mass of CaCo,(s) (grams) 0.20 The experiment is repeated with an eggshell sample, and the experimental data are recorded in the table below. Mass of eggshell sample 0.200g Pressure prior to reaction 0.800atm Pressure at completion of reaction 0.870atm

5. An experiment is performed to measure the mass percent of Caco,(s) in eggshells. Five different samples of Caco,(s) of known mass react with an excess of 2.0M HCI(aq) in identical sealed, rigid reaction vessels. The pressure of the gas produced is measured with a pressure gauge attached to the reaction vessel. Since the reaction is exothermic, the reaction system is cooled to its original temperature before Cooling the HCl(aq) to a lower temperature than it was in the original experiment the pressure is recorded. The experimental data are used to create the calibration line below. Using eggshells that are more finely powdered than those used in the original experiment 0.10- E 0.09- 0.08- Using 2.0M CH,COOH(aq) instead of 2.0M HCl(aq) 0.07- 0.06- 5 0.05- 0.04 E0.03- Reducing the volume of the reaction vessel CLEAR ALL 0.02 os ++++ ++++ ++ 0.15 0.10 Mass of CaCo,(s) (grams) 0.20 The experiment is repeated with an eggshell sample, and the experimental data are recorded in the table below. Mass of eggshell sample 0.200g Pressure prior to reaction 0.800atm Pressure at completion of reaction 0.870atm

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter5: Gases

Section: Chapter Questions

Problem 165MP

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perform stoichiometric ca1cu1uions for reactions involving gases as reactants or products.
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