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19975413#10001

19975413#10001

Chemistry
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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19975413#10001 <HW #06 Problem 3.104 - Enhanced - with Feedback 5 of 5 A mixture containing KCIO3, K2CO3, KHCO3, and KCl was heated, producing C02,02, and H20 gases according to the following equations: R Review Constants Periodic Table rIIst, uie mldss gianIS OI UU2 prUuuceu uuiig uie uecuiposiIUn UI NIOU3 IS CdiLulateu iIUin g 12u. Mass of CO2 produced from KHCO3 = 1.90 g H20 × 1 mol H20 18.02 g H2O 2 mol CO2 1 mol H20 44.01 2KCIO3(s) 1 m - 2KCI(s) + 302(g) K20(s) + H2O(g) + 2CO2(g) + K20(s) + CO2(g) The remaining CO2 collected is from the decomposition of K2CO3. 2KHCO3(s) K2CO3(s) (Total mass CO2 collected) (mass CO2 from KHCO3 decomposition) (9.28 CO2 from KHCO3) mass CO (13.72 g CO2 total) The KCI does not react under the conditions of the 4. The mass in grams of K2CO3 in the original sample can then be found: reaction. 100.0g of the mixture produces 1.90 g of H2O, 13.72 g of CO2, and 4.10 g of 02. (Assume complete decomposition of the mixture.) Mass K2 CO, in original mixture = 4.44 g CO2 x 1 mol CO2 44.01 g CO2 1 mol K2CO3 1 mol CO2 Part D How many grams of KCI were in the original mixture? Express your answer to three significant figures. Πνα ΑΣφ ? m = g Submit Request Answer
Transcribed Image Text:19975413#10001 <HW #06 Problem 3.104 - Enhanced - with Feedback 5 of 5 A mixture containing KCIO3, K2CO3, KHCO3, and KCl was heated, producing C02,02, and H20 gases according to the following equations: R Review Constants Periodic Table rIIst, uie mldss gianIS OI UU2 prUuuceu uuiig uie uecuiposiIUn UI NIOU3 IS CdiLulateu iIUin g 12u. Mass of CO2 produced from KHCO3 = 1.90 g H20 × 1 mol H20 18.02 g H2O 2 mol CO2 1 mol H20 44.01 2KCIO3(s) 1 m - 2KCI(s) + 302(g) K20(s) + H2O(g) + 2CO2(g) + K20(s) + CO2(g) The remaining CO2 collected is from the decomposition of K2CO3. 2KHCO3(s) K2CO3(s) (Total mass CO2 collected) (mass CO2 from KHCO3 decomposition) (9.28 CO2 from KHCO3) mass CO (13.72 g CO2 total) The KCI does not react under the conditions of the 4. The mass in grams of K2CO3 in the original sample can then be found: reaction. 100.0g of the mixture produces 1.90 g of H2O, 13.72 g of CO2, and 4.10 g of 02. (Assume complete decomposition of the mixture.) Mass K2 CO, in original mixture = 4.44 g CO2 x 1 mol CO2 44.01 g CO2 1 mol K2CO3 1 mol CO2 Part D How many grams of KCI were in the original mixture? Express your answer to three significant figures. Πνα ΑΣφ ? m = g Submit Request Answer
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