A 2.50-g of sucrose (C2H22011) was burned with excess axygen in a calorimeter which contained 1.95 kg of water. The temperature of the calorimeter and contents increased from 18.22°C to 22.73°C The calorimeter had a water equivalent of 240 g Determine the heat of combustion of sucrose in kcal'mole. C12H22011(5) + 1202(g --> 12 CO2 (g) + 11 H20 (1) For the toolbar, oress Al T+F10 (PO or ALT-FN+F10 (Mar).

A 2.50-g of sucrose (C2H22011) was burned with excess axygen in a calorimeter which contained 1.95 kg of water. The temperature of the calorimeter and contents increased from 18.22°C to 22.73°C The calorimeter had a water equivalent of 240 g Determine the heat of combustion of sucrose in kcal'mole. C12H22011(5) + 1202(g --> 12 CO2 (g) + 11 H20 (1) For the toolbar, oress Al T+F10 (PO or ALT-FN+F10 (Mar).

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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Dimethyl ether, a useful organic solvent, is prepared in two steps. In the first step, carbon dioxide and hydrogen react to form methanol and water: CO2(g) + 3H2(g) --> CH3OH(I) + H2O(I) H=-131. kJ In the second step, methanol reacts to form dimethyl ether and water: 2CH3OH(I) ---> CH3OCH3(g) + H2O(I) H=8. kJ Calculate the net change in enthalpy for the formation of one mole of dimethyl ether from carbon dioxide and hydrogen from these reactions. Round your answer to the nearest kJ. = kJ
25.0 mL of 2.00M HCI and 25.0 mL of 1.00M NaOH are mixed in a coffee cup calorimeter. The temperature increases from 25.60°C to 28.20°C. What is dHxn for the reaction of HCI and NaOH, in kJ/mol? Provide numerical answer in kJ/mol (no units, just number). Include + or - sign as relevant. Use appropriate sig figs. Note: check stoichiometry, there may be a limiting reagent!
b) Construct an enthalpy cycle and calculate the enthalpy of combustion in each case using the above data. 3. Given the following data: AH(CH4) = -74.8 kJmol-¹, AH(CH3CI) = -134.5 kJmol-¹, AH (HCI) = -92.3 kJmol-¹; Construct an enthalpy cycle and calculate H for the reaction CH4(g) + Cl2(g) CH3CI(g) + HCl(g) 4. Given the data: 4NH3(g) + 302(g) 0 2N2(g) + 6H2O(1), AH = -1530kJmol-1 H2(g) + 1/2O2(g) □ H₂O(1), AH = -288 kJmol-¹ Construct an enthalpy cycle and calculate the enthalpy of formation of ammonia.
The equation I found for 2a was: C3H6 + 9/2 O2 ----> 3CO2 +3H2O
What is the standard enthalpy (in KJ) of formation for this reaction: CH (g) + O2(g) → CO2(g) + H20(1) Hint balance the reaction first Answer in decimal form with 1 decimal place Compound H; (KJ/mol) Compound H;(KJ/mol) CH-(9) CO2(9) SO2(9) HC(g) H,O(g) H,O(1) H2S(g) • 90.4 H2SO,(1) 33.9 M9SO,(s) -545.2 Mn0(s) -286.2 MnO2(s) -580.7 NaCl(s) SO3(g) -74.8 -92.3 -393.5 -241.8 -296.1 -285.8 NH,CI(s) NO(g) NO2(9) SnCl4(1) Sn0(s) SnO2(s) NaF(s) NaOH(s) NH3(g) Co(g) -315.4 -20.1 -811.3 -1278.2 -384.9 -519.7 -411 -569 -395.2 Zn0(s) ZnS(s) O2(9) -426.7 -348 -46.2 -2029 -110.5
Please help with D & E