Using the standard enthalpies of formation H+ given, determine the enthalpy of this reaction. 2AX2 (g) + Br2 (g) →2AX (g) + 2XBr (g) H+ values AX2 (g)=-407 kJ/mol AX (g) 110 kJ/mol XBr (g) 98 kJ/mol For full credit: • Round your answer to the ones place so that there are no decimals. (EX: 12.3 = 12) Include the correct unit. Your Answer: Answer units

Using the standard enthalpies of formation H+ given, determine the enthalpy of this reaction. 2AX2 (g) + Br2 (g) →2AX (g) + 2XBr (g) H+ values AX2 (g)=-407 kJ/mol AX (g) 110 kJ/mol XBr (g) 98 kJ/mol For full credit: • Round your answer to the ones place so that there are no decimals. (EX: 12.3 = 12) Include the correct unit. Your Answer: Answer units

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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A scientist measures the standard enthalpy change for the following reaction to be -208.6 kJ :CO(g) + 3 H2(g)CH4(g) + H2O(g)Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of CH4(g) is kJ/mol.
A scientist measures the standard enthalpy change for the following reaction to be -56.0 kJ: Ca(OH)2(aq) + 2 HCI(aq)CaCl2(s) + 2 H2O1) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H2(1) is kJ/mol. 9 more group attempts remaining Submit Answer Retry Entire Group
A) A scientist measures the standard enthalpy change for the following reaction to be -891.8 kJ :2NH3(g) + 3 N2O(g)4N2(g) + 3 H2O(g)Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of N2O(g) is -------kJ/mol. B) A scientist measures the standard enthalpy change for the following reaction to be 36.2 kJ :CO2(g) + H2(g)CO(g) + H2O(g)Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of CO(g) is ------- kJ/mol.
Using the standard enthalpies of formation Hf0 given, determine the enthalpy of this reaction. AX2 (g) + 2Y2 (g) → AX2Y4 (g) Hf0 values AX2 (g) = - 267.4 kJ/mol Y2 (g) = 126.2 kJ/mol AX2Y2 = 324.5 kJ/mol For full credit: Round your answer to the tenths place so that there are no decimals. (EX: 12.3 = 12) Include the correct unit.
When 1.42 g of iron reacts with 1.80 g of chlorine, 3.22 g of iron(II) chloride (FeCl2, molar mass = 126.75 g/mol) and 6.8 kJ of heat is produced. What is the enthalpy change for the reaction when 1 mole of iron(II) chloride is produced? round to sig figs
For questions 4-7 Calculate ?Hrxn for the given reaction using the enthalpy of formation values provided at the end of the assignment.4) CaO(s) + SO3(g) → CaSO4(s) Substance Heat of Formation (?Hf) in kJ/mol CaO(s) -635.5 SO₃(g) -395.2 CaSO₄(s) -1432.7 Al(s) 0 Fe₂O₃(s) -822.2 Al₂O₃(s) -1669.8 C₄H₁₀(l) -147.6 O₂(g) 0 CO₂(g) -393.5 H₂O(g) -241.8 H₂O(l) -285.8 H₂O₂(l) -187.6
Could you do question C please
< Question 21 of 29 O Attempt 2 When 0.376 g of sodium metal is added to an excess of hydrochloric acid, 3910 J of heat are produced. What is the enthalpy of the reaction as written? 2 Na(s) + 2 HCI(aq) 2 NaCl(aq) + H2(g) Enthalpy of reaction: 478.35 kJ Incorrect
Determine the change in enthalpy (kJ/mol) for the following reaction. Use significant figures CH4(g) + 2O2(g) -> CO2(g) + 2H2O(l) H=?
2 E6L14(s) + 19 A2(g) → 12 MA2(g) + 7 L₂A(g) AH = 1300 kJ/molrxn 21. What is the enthalpy of formation, AH, for the substance E6L14 shown in the reaction above? AH (kJ/mol) ??? со How Substance E6L14(S) A₂(g) De MA₂(g) L₂A (g) 0 100 50 B
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Use Hess's Law to calculate the enthalpy for this reaction: 4SO3(g) → 4S(s) + 602(g) AH° ??? kJ !! rxn Given the following thermochemical equations: SO2(g)→ S(s) + O2{g) AH° = +296.8 kJ 2SO2(g) + O2(g) → 2SO3(g) AH° = -197.8 kJ