us engine.html?ClassID=1087757335Calculate the standard enthalpy of formationfor ethane, C2H6, using the enthalpy for thereaction and the formation data.2C2H6(g) + 702(g) → 4CO2(g) + 6H2O(g)AHxn = -2858 kJCompound AH°; (kJ/mol)C,Ho(g)Co,(g)H,O(g)AH; = [ ? ] kJ-394-242Enter either a + or - sign and the magnitude.Enter

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Calculate the standard enthalpy of formation for ethane, C2H6, using the enthalpy for the reaction and the formation data. 2C,H6(g) + 702(g) → 4CO2(g) + 6H2O(g) AHxn = -2858 kJ %3D Compound AH°; (kJ/mol) C,Ho(g) Co,(g) H,0(g) f AH; = [ ? ] kJ -394 -242 Enter either a + or - sign and the magnitude. Enter

Calculate the standard enthalpy of formation for ethane, C2H6, using the enthalpy for the reaction and the formation data. 2C,H6(g) + 702(g) → 4CO2(g) + 6H2O(g) AHxn = -2858 kJ %3D Compound AH°; (kJ/mol) C,Ho(g) Co,(g) H,0(g) f AH; = [ ? ] kJ -394 -242 Enter either a + or - sign and the magnitude. Enter

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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Given the standard enthalpy changes for the following two reactions: (1) 2C(s) + 2H2(g) C2H4(g) AH° = 52.3 kJ (2) 2C(s) + 3H2(g) C2H6(g) AH° = -84.7 kJ what is the standard enthalpy change for the reaction: (3) C2H4(g) + H2(g) C2H6(g) AH° = ? kJ
In the following reaction, how many moles of CH3OH are required to give off 1876 kJ of heat? 2 CH;OH (1) + 3 O2 (g) → 2 CO2 (g) + 4 H2O(g) AH° = -1280. kJ
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2. จงหาค่า AH ของปฏิกิริยานี้ จากข้อมูลที่กำหนดให้ 2C (s) + 2 H,0 (g) → CH, (g) + CO,(g) Determine the standard enthalpy change for this reaction from the following standard enthalpies of reaction: (1) C(s) + H,O (g) → CÓ (g) + H, (g) AH° = 131.3kJ (2) CO (g) + H2O (g) → CO2 (g) + H2 (g) ΔΗΟ = -41.2 kJ (3) CH, (g) + H,O (g) → 3H, (g) + CO (g) AH° = 206.1kJ ชื่อ-สกุล .วันที่ เลขที่ เรหัส.. (0202104) จงหาค่า AH และ As ของปฏิกิริยานี้ จากข้อมูลที่กำหนดให้ 3 ปฏิกิริยาการสังเคราะห์ด้วยแสงเกิดขึ้นดังสมการ 6 CO, (g) + 6 H,0 (1) CH2O6 (S) + 6 0, (g) กำหนดค่าที่สภาวะมาตรฐานของ AH และ S ของสารแต่ละตัว ดังนี้ AH°, (kJ mol-') s° (JK-1 mol-') สาร | CH,206 (s) -1,273 212 O, (g) 205 2/2 CO, (g) -393 214 H,0 (1) -285 70
A chemist measures the enthalpy change AH during the following reaction: C,H,0,(s)-3 CH,(o) + 3CO,(g) AH=-132. kJ Use this information to complete the table below. Round each of your answers to the nearest kJ/mol. reaction AH 9CH, (0) + 9Co, (a) - 30H,0,0) 3CH, (6) + 300, (a) - C,H,0,0) GH,0,) - CH, 6) + co,()
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Using the data provided below, calculate the standard enthalpy change for the following reaction: 2LIOH(s) + CO,(g) → Li,CO;(s) + H,O(g) AH,º LIOH(s) = -487.23 %3D kJ/mol AHº CO2(g) = -393.51 kJ/mol AH,º Li¿CO3(s) = -1216.04 kJ/mol AHº H2O(g) = -241.82 kJ/mol %3D - 35.4 kJ O - 89.9 kJ O- 132 kJ
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How many grams of CaO must be added to 50.0 mL of water to make the temperature increase from 25.0 Â°C to 58.87 Â°C? The reaction is CaO(s) + H 2O(l) ↔ Ca(OH) 2(aq) -- ΔH = -83.7 kJAssume the heat capacity of the solution is the same as pure water (4.184 J/g*Â°C), the density of the solution is 1.00 g/mL and there is no loss of heat to the surroundings.
Given the standard enthalpy changes for the following two reactions: (1) N2(g) + 202(g)N204(g) AH° = 9.2 kJ (2) 2N20(g)2N2(g) + O2(g) AH° = -164.2 kJ what is the standard enthalpy change for the reaction: (3) 2N½0(g) + 302(g)- →2N2O4(g) AH° = ? kJ
Gasoline is composed primarily of hydrocarbons, includingmany with eight carbon atoms, called octanes. One ofthe cleanest–burning octanes is a compound called 2,3,4-trimethylpentane, which has the following structural formula: The complete combustion of one mole of this compoundto CO21g2 and H2O1g2 leads to ΔH° = -5064.9 kJ.(a) Write a balanced equation for the combustion of1 mol of C8H181l2. (b) By using the information inthis problem and data in Table 5.3, calculate ΔHf° for2,3,4-trimethylpentane.
use the standard reaction enthalpies given below to determine ▲H°rxn for the following reaction (see image)