A 0.485-g sample of 1,8-octanediol (C3H1802) is burned in a bomb calorimeter and the temperature increases from 24.10 °C to 27.20 °C. The calorimeter contains 1.06×10³ g of water and the bomb has a heat capacity of 873 J/°C. Based on this experiment, calculate AE for the combustion reaction per mole of 1,8-0ctanediol burned (kJ/mol). C3H1802(s) + 23/2 O2(g)· 38 СО2(g) + 9 H20(1) ΔΕ kJ/mol

A 0.485-g sample of 1,8-octanediol (C3H1802) is burned in a bomb calorimeter and the temperature increases from 24.10 °C to 27.20 °C. The calorimeter contains 1.06×10³ g of water and the bomb has a heat capacity of 873 J/°C. Based on this experiment, calculate AE for the combustion reaction per mole of 1,8-0ctanediol burned (kJ/mol). C3H1802(s) + 23/2 O2(g)· 38 СО2(g) + 9 H20(1) ΔΕ kJ/mol

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions

Section: Chapter Questions

Problem 46PS: A 0.692-g sample of glucose, C6H12O6, was burned in a constant-volume calorimeter. The temperature...

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When a 0.740-g sample of trinitrotoluene (TNT), C7H5N2O6, is burned in a bomb calorimeter, the temperature increases from 23.4 C to 26.9 C. The heat capacity of the calorimeter is 534 J/C, and it contains 675 mL of water. How much heat was produced by the combustion of the TNT sample?
At 298 K, the standard enthalpies of formation for C2H2(g) and C6H6(l) are 227 kJ/mol and 49 kJ/mol, respectively. a. Calculate H for C6H6(l)3C2H2(g) b. Both acetylene (C2H2) and benzene (C6H6) can be used as fuels. Which compound would liberate more energy per gram when combusted in air?
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9.61 Silane, SiH4, burns according to the reaction, SiH4+2O2SiO2+2H2O , with H=1429 kJ. How much energy is released if 15.7 g of silane is burned?
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A student performing a calorimetry experiment combined 100.0 ml. of 0.50 M HCI and 100.0 ml. of 0.50 M NaOH in a StyrofoamTM cup calorimeter. Both solutions were initially at 20.0 C, but when the two were mixed, the temperature rose to 23.2 C (a) Suppose the experiment is repeated in the same calorimeter but this time using 200 mL of 0.50 M HCl and 200.0 ml of 0.50 M NaOH. WIII the AT observed be greater than, less than, or equal to that in the first experiment, and why? (b) Suppose that the experiment is repeated once again in the same calorimeter, this time using 100 mL of 1.00 M HCI and 100.0 ml. of 1.00 M NaOH. Will the T observed be greater than, less than, or equal to that in the first experiment, and why?
A sample of benzene, C6H6, weighing 3.51 g was burned in an excess of oxygen in a bomb calorimeter. The temperature of the calorimeter rose from 25.00C to 37.18C. If the heat capacity of the calorimeter and contents was 12.05 kJ/C, what is the value of q for burning 1.00 mol of benzene at constant volume and 25.00C? The reaction is C6H6(l)+152O2(g)6CO2(g)+3H2O(l) Is q equal to U or H?
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