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2) A 2.12g sample of MgO (molar mass = 40.3 g/mol) was placed in a coffee cup calorimeter and mixed with 65mL of 1M HCI a 21°C. The temperature of the solution rose to 42.5°C. Find the heat of the reaction qsys and AH°rxn assuming the MgO is the limiting reagent. Heat capacity of water = 4.18J/gK MgO(s) + 2HCl(aq) → MgCl2(aq) + H₂O (1)

2) A 2.12g sample of MgO (molar mass = 40.3 g/mol) was placed in a coffee cup calorimeter and mixed with 65mL of 1M HCI a 21°C. The temperature of the solution rose to 42.5°C. Find the heat of the reaction qsys and AH°rxn assuming the MgO is the limiting reagent. Heat capacity of water = 4.18J/gK MgO(s) + 2HCl(aq) → MgCl2(aq) + H₂O (1)

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Chemistry
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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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2.12 2) A 2.12g sample of MgO (molar mass = 40.3 g/mol) was placed in a coffee cup calorimeter and mixed with 65mL of 1M HCI a 21°C. The temperature of the solution rose to 42.5°C. Find the heat of the reaction qsys and AH°rxn assuming the MgO is the limiting reagent. Heat capacity of water = 4.18J/gK MgO(s) + 2HCl(aq) → MgCl2(aq) + H₂O (1) SS 27 425 1.26X. 40.305.3 1:9 GR 269, 1234 21.5x65x40.3 56,344-35 price as the balan: Ro the half pastr Heto 1254
Transcribed Image Text:2.12 2) A 2.12g sample of MgO (molar mass = 40.3 g/mol) was placed in a coffee cup calorimeter and mixed with 65mL of 1M HCI a 21°C. The temperature of the solution rose to 42.5°C. Find the heat of the reaction qsys and AH°rxn assuming the MgO is the limiting reagent. Heat capacity of water = 4.18J/gK MgO(s) + 2HCl(aq) → MgCl2(aq) + H₂O (1) SS 27 425 1.26X. 40.305.3 1:9 GR 269, 1234 21.5x65x40.3 56,344-35 price as the balan: Ro the half pastr Heto 1254
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