2 attempts leftCheck my workEnter your answer in the provided box.Acetylene burns in air according to the following equation:5C₂H2(g) + + O2(g) →2 CO2(g) + H2O(g)00ΔΗ=-1255.8 kJrxnGiven AH of CO2(g)=-393.5 kJ/mol and AH of H2O(g)=-241.8 kJ/mol, find AH of C2H2(g).0fkJ/molHintSolutioGuided Sol

To find the standard enthalpy of formation (ΔHf∘) of acetylene (C2H2), we can use the given…

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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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How much heat (in kJ) is released when 160 grams of CH4 is burned with 2000. grams of O2? If the answer is exothermic be sure your answer has the correct sign! CH4 + 2O2 --> CO + 2H2O ΔH = -803 kJ/mol
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Sucrose (table sugar, C12H22O11) can be oxidized to CO2 and H2O, and the enthalpy change for the reaction can be measured. C12H22O11(s) + 12 O2(g) → 12 CO2(g) + 11 H2O(ℓ) ΔHrxn° = -5645 kJ/mol-rxn What is the enthalpy change when 3.00 g of sugar is burned under conditions of constant pressure?
You wish to find the enthalpy for the reaction 6 Gel4 (s) + 14 NH41 (s) → 3 Ge₂H6 (1) + 7 N₂ (g) + 38 HI (g) Given the following equations Equation 1: 2 Ge (s) + 3 H₂ (g) Ge₂H6 (1) AH = 137.3 kJ/mol Equation 2: Ge (s) + 4 HI (g) → Gel4 (s) + 2 H₂(g) AH = -247.8 kJ/mol Equation 3: 2 NH4I (s) → N₂ (g) + 2 HI (g) + 3 H₂(g) AH = 455.8 kJ/mol What would be the enthalpy change, in kJ/mol, for 6 Gel4 (s) + 12 H₂(g) → 6 Ge (s) + 24 HI (g)?
34510/variants/434510/take/10/ Question 11 Draw a complete enthalpy diagram for the following reaction: 4Na) + O2(g) → 2Na₂O(s) PO AH = 178 kJ PENCIL THIN BLACK a + 07 12
Using the following equation for conversion of octane, calculate the heat associated with the combustion of 150.0g of the octane assuming complete combustion. The molar mass of octane is 114.33 g/mol. The molar mass of oxygen is 31.9988 g/ mole 2 C8H18+25O2 —> 16 CO2+ 18 H2O H degree rxn = -11018
Gasoline contains a mixture of alkanes, some of which are octanes, C8H18 (l). The heat of the reaction is -5471 kJ/mol of energy. The per mole is the coefficient in front of the compound in the equation. If your tank holds 10 gallons of gasoline, how much energy of combustion is available, assuming the gasoline was pure octane? Density octane = 0.7025 g/mL and 1 gallon = 3.785 L
18. From the following data, AH = -393.5 kJ/mol C(graphite) + O₂(g) → CO₂(g) 1 H₂ (g) + O₂(g) → H₂O(l) AH = -285.8 kJ/mol 2C₂H6 (g) +70₂(g) → 6H₂O(l) + 4CO₂(g) AH = -3119.06 kJ/mol calculate the enthalpy change for the reaction: 2C (graphite) (1) + 3H₂(g) → 2C₂H6 (g)
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Calorimetry: Question #3 Octane, C3H18 , is a constituent of gasoline, and burns in the presence of oxygen to produce water and carbon dioxide: 2 C3H18 (1) + 25 O2(g) → 16 CO2(9) + 18 H2O1) ΔΗ kJ/2mol %3D rxn C3H18 (1) When a 1.00-gram sample of octane is burned in a bomb calorimeter the temperature of the water and the calorimeter rises from 25.00°C to 33.20°C. If the heat capacity, Cbomb cal, of the empty bomb calorimeter is 837 J/°C, and the mass of the water is 1.200 kg: a) Calculate the heat, q, transferred, during the combustion, to the calorimeter: 6.86 kJ (calorimter) + qbomb cal = Cbomb cal • AT b) Calculate the heat, q, transferred, during the combustion, to the water: 41.2 kJ (1.200 kg H20) + 9H20 = + mH20 • AT • SH2O c) Calculate the enthalpy change (AHº rxn = kJ/2mol) for this reaction (2 mol of C3H18 (1): [ Select ] kJ/2 mol C3H18 (1)
Given the enthalpies for the following reactions: 2 Fe (s) + 3/2 O₂(g) → Fe2O3 (s)Math output error AH₂ ΔΗ, CO (g) + 1/2 O₂ (g) → CO₂ (g) CO2 (g) ΔΗ = -248.7 kJ rxn rxn = 1,091.6 kJ Calculate the enthalpy change (AHrxn) for the following reaction: Fe2O3 (s) + 3 CO (g) → 2 Fe (s) + 3 CO₂ (g)
What is the enthalpy change when 2.00 mol of oxygen (O2) react? C12H22O11(s) + 12 O2(g) → 12 CO2(g) + 11 H2O(l) ΔH = -5644 kJ

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