Calculate AH° and AE° for the following reactions at 25 °C. Use standard enthalpies of formation from the table below. Round youranswers to four significant digits.SubstanceAH: KJ mol-)SubstanceAH; (J mol-1)Co,()C,H,(g)(CH,);CO(/)H,O(g)HC(g)-393.5Na(g)226.75NH,(g)NH,CI6)-46.19-248.1-315.481.57-241.8-92.30(a) 2C2H2(s) + 502g) → 4CO2(g) + 2H2O(3)AH° =ikJAE° =ikJ4.6.fobW.R.H.Kcaps lock .BshittO

Answered: Image /qna-images/answer/b47a7ba4-0406-41b1-8eb8-13e8a9e8b44a.jpg

Calculate AH° and AE° for the following reactions at 25 °C. Use standard enthalpies of formation from the table below. Round your answers to four significant digits. Substance AH J mol-1) Substance AH; (J mol-1) Co.(g) C,H,(g) (CH,);CO() H,O(g) HC(g) -393.5 Na(g) 226.75 NH,(g) NH,CIG) -46.19 -248.1 -315.4 81.57 -241.8 92.30 (a) 2C2H2(g) + 502g) → 4CO2(g) + 2H2O(3) AH° = i kJ AE° = i kJ 4. 6. 8. lob W. R. Y K caps lock. B shito

Calculate AH° and AE° for the following reactions at 25 °C. Use standard enthalpies of formation from the table below. Round your answers to four significant digits. Substance AH J mol-1) Substance AH; (J mol-1) Co.(g) C,H,(g) (CH,);CO() H,O(g) HC(g) -393.5 Na(g) 226.75 NH,(g) NH,CIG) -46.19 -248.1 -315.4 81.57 -241.8 92.30 (a) 2C2H2(g) + 502g) → 4CO2(g) + 2H2O(3) AH° = i kJ AE° = i kJ 4. 6. 8. lob W. R. Y K caps lock. B shito

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...

See similar textbooks

Similar questions

4b. Combustion of 3.500 g of butane gas (C4H10; Mm = 58.12 g/mol) causes a temperature rise (AT) of 29.09°C in a constant-pressure calorimeter that has a heat capacity (C,) of 5.500 kJ/°C. o Use calorimetry to calculate the heat (q,) released by the combustion of 3.500 g of butane gas in the calorimeter Яр [ Select ] kJ / 3.500 g of C4H10 o Use the heat (qp) released by the combustion of 3.500 g of butane gas, calculated in part (a) to calculate the change in enthalpy (AHrxn) for the following reaction. (for 1 mole of butane gas): C4H10(9) + 13/2 02(9) → 4 CO2(9) + 5 H20(g) AHrxn [ Select ] kJ / mol of C4H10 • Use the heats of formation (AH¢°) to calculate the change in enthalpy (AHrxn) for the same reaction. (for 1 mole of butane gas): Heats of Formation: CO2 (g) - A H°f = -393.5 kJ/mol H2O(g) - A H°f = -241.8 kJ/mol O2 (9) - A H°f 0.0 kJ/mol C4H10 (g) - A H°f = -125.6 kJ/mol C4H10(g) + 13/2 02(g) → 4 CO2(9) + 5 H20(g) ΔΗη [ Select ] kJ / mol of C4H10
Use the standard reaction enthalpies given below to determine ?H*rxn
When 0.560g of NaF(s) reacts with excess F2(g) to form NaF(s), 13.8kJ of heat is evolved at standard-state conditions. What is the standard enthalpy of foundation (H*f) of NaF(s)?
PLEASE ANSWER BOTH AS THEY ARE BOTH MARKED TOGETHER but they are different questions. I will also consider giving you thumbs up for help.
Background-info: https://drive.google.com/file/d/1G7sPTuESIgWk9wpRdqAnFcsBmOlbBfLv/view?usp=sharing Question: Select each of the following substances for which the standard enthalpy of formation, AH°f, is equal to zero. Assume that all conditions are at standard pressure and temperature. CaO (s) O2 (8) H (aq) Uc(s, graphite) Na e)
Consider this reaction: C6H12O6 + 602 à 6CO2 + 6H₂O. What is the standard enthalpy AH°rxn given the standard molar enthalpies of the substances below? Substance C6H12O6 02 CO₂ H₂O AHᵒf (kJ/mol) -1274.4 0 -393.45 -241.8
10. The following molar enthalpies of formation are given in kJ/mol: AHP[C;Hs(g)] = -104; AHP[CO2(g)] = -394; AHP[H;O(g)] = -242. (a) Calculate the molar heat of combustion of propane (C;Hs) according to the following equation: C;Hs(g) + 5 O2(g) → 3CO2(g) + 4H2O(g); (b) How many grams of propane gas must be combusted to provide enough thermal energy to heat 1.00 kg water from 22.0°C to 100.0°C? (Specific heat of water = 4.184 J/mol.K)
The standard molar enthalpy of formation for oxygen gas, ?2(?), is zero. The enthalpy of formation for atomic oxygen, ?(?), is +250??/???. Why is there a difference in these values?
55. Does the standard enthalpy of formation of H2O(g) differ from ΔH° for the reaction 2H2(g)+O2(g)⟶2H2O(g)?
Calculate AH°rxn in kJ/mol for the reaction below. Look up the values for AHº below. SO2 (g) + ½ O2 (g) – SO3 (g) Table 6.3 Standard Enthalpies of Formation of Some Inorganic Substances at 25°C Substance AH; (kJ/mol) Substance AH; (kJ/mol) Ag(s) AgCl(s) H,O2(/) - 187.6 - 127.04 Hg(/) 1(5) Al(s) Al203(s) - 1669.8 HI(g) 25.94 Br2(/) HBr(g) C(graphite) Mg(s) - 36.2 MgO(s) MgCO3(s) N2(g) NH3(g) NO(g) NO,(g) N,O4(g) -601.8 -1112.9 C(diamond) 1.90 CO(g) CO2(g) -110.5 -46.3 -393.5 90.4 Ca(s) 33.85 CaO(s) -635.6 9.66 CacO;(s) - 1206.9 N20(g) 81.56 Cl2(g) HCI(g) Cu(s) CuO(s) O(g) O2(g) O3(g) 249.4 -92.3 142.2 - 155.2 S(rhombic) F2(g) HF(g) S(monoclinic) 0.30 -268.61 SO2(g) SO;(g) H2S(g) -296.1 H(g) H2(g) 218.2 -395.2 -20.15 -347.98 H,O(g) H2O(I) -241.8 ZnO(s) -285.8
5 18 21 F2 @ 2 S Alt 4 W X F3 Using the standard enthalpies of formation He given and your knowledge of H values for elements in their standard states, determine the enthalpy of this reaction. 2A3X2 (g) + O2 (g) - 2A3X (g) + 2XO (g) Hvalues A3X2 (g) = -78 kJ/mol A3X (g) = -221 kJ/mol XO (g) = 111 kJ/mol O Et F4 40) # 3 E D C $ 4 R F F5 ► 11 V olo % 5 F6 T G A B A 6 S F7 Y H F8 & 7 N U J F9 * 00 8 M Q I K F10 S ( 9 < Alt O F11 L 8: ) O O F12 P Ctrl PrtScr 0.00 ? { [ + = 1 +Home Act Go to 83°F Su Insert } 1 TP
In a coffee cup calorimeter, 10.0mL of 1.00M AgNo3 and 10.0mLof 1.00M NaCl are mixed and the following reaction occurs (assume reaction goes to completion) Ag+ (aq) + Cl-(aq) ----> AgCl(s) The 2 solutions are intitially at 25.0C and the final temperature is 36.2C. Assuming density of the solution is 1.00g/mL and the heat capactity of the solution is 4.18J/K/g. Calculate q for the reaction in KJ