A chemist measures the enthalpy change AH during the following reaction:C6H12O6(5)→2 CO2(g) + 2 C₂H₂OH(1)AH=-69. kJUse this information to complete the table below. Round each of your answers to the nearest kJ.reactionΔΗ2CO2(g) + 2C, H₂OH(I) → CH₂O (5)OkJ3C H₂O (5) 6CO, (s) + 6C,H,OH(!)SCO₂ (s) + SC H₂OH(!)-4C H₁₂O (5)☐ kJ

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Answered: A chemist measures the enthalpy change…

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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Calculate the enthalpy of reaction (AHrxn) for the following reaction: Fe2O3(s) + 3 CO(g) → 2 Fe(s) + 3 CO2(g) Given: 4 Fe(s) + 3 02(g) → 2 Fe203(s) AH= -1648 kJ 2 CO2(g) → 2 C0(g) + 02(g) AH = +565.4 kJ
A scientist measures the standard enthalpy change for the following reaction to be -1122.2 kJ : 2H,S(g) + 3 O2(g)–→2H,O(1) + 2 SO2(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H,S(g) is kJ/mol.
A scientist measures the standard enthalpy change for the following reaction to be - 778.8 kJ: 2NO(g) + 2H₂ (g) → N₂(g) + 2H₂O (1) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H₂O(l) is kJ/mol. Substance AH (kJ/mol) NO(g) H₂(g) N₂ (9) Submit Answer 90.3 0.0 0.0 Retry Entire Group 9 more group attempts remaining
A chemist measures the enthalpy change AH during the following reaction: 2 KCl(s) + 30₂(g) →2 KClO3(s) Use this information to complete the table below. Round each of your answers to the nearest kJ/mol. reaction 2 KCI(s) + O₂(g) →KCIO₂ (s) 6K CIO3 (s) 6KCI(s) + 90₂ (g) 2K CIO3(s) 2KCI(s) 2KCl(s) + + 30₂ (g) ΔΗ = 78. kJ ΔΗ เม Ок kJ kJ kJ x10 X Ś
4 CH3NH2 (g) + 2 H2O (l) ➝ CO2 (g) + 3 CH4 (g) + 4 NH3 (g) ΔHº = –138.96 kJ• Calculate the overall change in enthalpy when 30.00 grams of CH3NH2 (g) reacts with excess H2O (l). [Be sure to include the correct sign.]
A chemist measures the enthalpy change AH during the following reaction: COC1₂(9) + 4 NH3(9)→ CO(NH₂),(s) + 2NH4Cl(s) Use this information to complete the table below. Round each of your answers to the nearest kJ/mol. esc COC₁₂ (8) + 2NH₂(g) → CO(NH₂), (s) + NH₂Cl(s) 1 1 ẩCO(NH,),() + ≈NH,C() → † COCI,(8) + NH, (8) CO(NH₂)₂ (s) + 2NH₂Cl(s) → COCL, (g) + 4NH, (g) Explanation THE Check reaction I > AH=-559. kJ Costa ΔΗ kJ ☐ kJ KJ MacBook Pro x10 X S © 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Acc You MOSISO L
THERMODYNAMICS: A 1.09 g sample of acetic acid (HC2H2O2) was burned in excess oxygen in a bomb calorimeter. The calorimeter, which alone had a heat capacity of 2.67 KJ°C. contained 7g of water. The temperature of the calorimeter and its contents increased from 24.13°C to 27.95°C. What is AH (in kJ) for the combustion per 1.00 mol of acetic acid? MW of acetic acid is 60 gimol. (Round off the final answer to ONE decimal place. Do not include the unit.)
With a platinum catalyst, ammonia will burn in oxygen to give nitric oxide, NO. 4NH3 (9) + 502 (g) → 4NO(9) + 6H20(g) AH = -906 kJ What is the enthalpy change for the following reaction? NO(9) + H2O(9) → NH3 (9) + O2(g) Enthalpy change : kJ
A chemist measures the enthalpy change AH during the following reaction: 2 HNO3(1) + Mg(s)→→ Mg(NO3)₂(s) + H₂(9) ΔΗ = - 443. kJ Use this information to complete the table below. Round each of your answers to the nearest kJ. reaction Mg(NO3)₂ (s) + H₂ (g) → 2HNO3 (1) + Mg(s) 3Mg(NO3)₂ (s) + 3H₂(g) + 3H₂(g) → 6HNO3 (1) + 3Mg(s) HNO₂(1) + — Mg(s) → — Mg(NO₂)₂ (s) + —⁄H₂(g) AH kJ x10 X Ś
9
From the following data, C (graphite) + O₂(g) → CO₂(g) H₂(g) + —⁄- 02₂(g) → H₂O (1) CH₂(g) + 20₂(g) → CO₂(g) + 2H₂O (1) kJ ×10 Calculate the enthalpy change for the reaction below: C(graphite) + 2H₂(g) CH4 (g) Be sure your answer has the correct number of significant digits. X → ΔΗ° S rxn ΔΗ° = -285.8 rxn = -393.5 ΔΗ° = -890.4 rxn kJ mol kJ mol kJ mol
When 1.550 g of liquid hexane (C6H14) undergoes combustion in a bomb calorimeter, the temperature rises from 25.87 °C to 38.13 °C. Find AErxn for the reaction in kJ/mol hexane. The heat capacity of the bomb calorimeter, determined in a separate experiment, is 5.73 kJ/°C. Express your answer in kilojoules per mole to three significant figures. AErxn of hexane = Submit VE ΑΣΦ Request Answer ? kJ/mol

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