Given teh reaction: NHẠCI + CasO4 – (NH4)2SO4 + CaCl2 A Hf NH4CI = -311.730 A Hf Caso4 = -1434.5 kJ/mol A Hf (NH4)2SO4 = -1180,9 kJ/mol A Hr Cacl2 = -795.4 kJ/mol What us What is the AH*f of the the reactant? What us What is the AH'f of the the product? What is the AH'rxn of this given reaction?

Given teh reaction: NHẠCI + CasO4 – (NH4)2SO4 + CaCl2 A Hf NH4CI = -311.730 A Hf Caso4 = -1434.5 kJ/mol A Hf (NH4)2SO4 = -1180,9 kJ/mol A Hr Cacl2 = -795.4 kJ/mol What us What is the AH*f of the the reactant? What us What is the AH'f of the the product? What is the AH'rxn of this given reaction?

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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What is the AH for the following reaction: IF5 (8)→ IF 3 (g) + F₂ (g) Given: IF (g) + F2 (g) → IF 3 (g) IF (g) + 2F2 (g) → IFs (g) +1135 kJ -35 kJ +355 kJ -1135 kJ +35 kJ ΔΗ = -390 kJ ΔΗ = -745 kJ
Consider the combustion of X (unknown compound): 2 X + 3 02 - 2 CO2 + 4 H2O with AH'rxn = -1452.8 kJ/mol. Calculate AH°f of X. Given: AH*f(CO2) = -393.5 kJ/mol: AH'f(H20) = -285.8 kJ/mol O -238.7 kJ/mol O -679 3 kJ/mol O +238,7 kJ/mol O 477.4 kJ/mol
* Consider the reaction A B with AH° = 43.19 kJ/molxn and the reaction B -→ C with AH° = 81.98 kJ/molpxn- What should be the AH° in kJ/mol,n for the reactionA→ C? Report your answer to three decimal places.
Calculate the AH°rxn for the combustion of methane using the given AH°r. CH4 (g) + 202 (g) 2H20 (1) + CO2{g) AH°t, methane(g) = -74.60 kJ/mol AH°f, water(l) = -285.8 kJ/mol AH°t, carbon dioxide(g) = -393.5 kJ/mol 890.5 kJ/mol -890.5 kJ/mol -1.04 x 103 kJ/mol
Use the information provided to determine AH°rxn for the following reaction: -> CH4(g) + 4 Cl2(g) → CCl4(g) + 4 HCl(g) AH°rxn = ? AHof (kJ/mol) CH4(g) -75 CCl4(g) -96 HCl(g) -92 O A.-71 kJ O B.-389 kJ OC. +79 kJ O D. +113 kJ O E.-113 kJ
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Use the following information to anwser the next question: HNO3(aq) + KOH (aq) → KNO3 (aq) + H2O (l) A 50.0 mL sample of 0.200 mol/L nitric acid is mixed with 50.0 mL of KOH (aq), in a calorimeter. The initial temperature is 20°C. After the reaction, the temperature is 30°C. Calculate the molar enthalpy change for the above reaction.
Consider the reaction A B with AH° = 25.39 kJ/molrxn: What should be the AH° in kJ/molxn for the reaction 3 A 3 B? Report your answer to three decimal places.
Consider the reaction A B with AH° = -50.97 kJ/moln- What should be the AH° in kJ/molm for the reaction 3 B→ 3 A? Report your answer to three decimal places.
Consider the reaction A B with AH° = -71.25 kJ/moln- What should be the AH° in kJ/molm for the reaction B A? Report your answer to three decimal places.
Calculate ASº for the combustion of propane. C3H8(g) + 502(g) → 3CO2(g) + 4H20(g) Substance C3H8(g) O2{g) CO2(g) H2O(g) S° / (J/K•mol) 269.9 205.138 213.74 188.825 -72.5 J/K 100.9 J/K O72.5 J/K O -100.9 J/K O 877 J/K