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What must be changed about the first law for a flow system with a chemical reaction? equilibrium term added heat of reaction term added nothing changes CamScanner

Introductory Chemistry: An Active Learning Approach

6th Edition

ISBN:9781305079250

Author:Mark S. Cracolice, Ed Peters

Publisher:Mark S. Cracolice, Ed Peters

Chapter18: Chemical Equilibrium

Section: Chapter Questions

Problem 3E

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What must be changed about the first law for a flow system with a
chemical reaction?
equilibrium term added
heat of reaction term added
nothing ehanges CamScanner

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If a student combines specific amount CaCl2. 9H2O and Na2CO3 and obtained a solid precipitate. The student dissolve 1.37 gram of CaCl2. 9H2O in 25.0 mL of water and 0.984 g of Na2CO3 in 25.0 mL of water. The student is then combining the two solutions and observed the formation of a solid precipitate. The student filter the solution and recovered the precipitate. The following data were obtained for the experiment. Initial Mass of CaCl2. 9H2O 1.37 g Initial Mass of Na2CO3 0.984 g % yield of this experiment 87.4% Question 1. Determine the amount of the solid in (grams) that the student recovered in this experiment. Question 2. How many grams from the excess reactant remains unreacted in this experiment?
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