A 4.98 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb
calorimeter with a heat capacity of 4.25 kJ/
Heat released by combustion raises temerature in
calorimeter
heat released=heat capacity*rise in temperature
= 4.25*(69.8-29.5)
=171.275 KJ
mol of aniline=mass/moloar mass
=4.98/93.13
=0.0535 mol
Delta H=-heat released/mol
=-171.275/0.0535
=-3201.4 Kj/mol
A 4.98 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter with a heat capacit...
A 6.55 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter. If the temperature rose by 32.9°C, use the information below to determine the heat capacity of the calorimeter. 4 C6H5NH2(l) + 35 O2(g) → 24 CO2(g) + 14 H2O(g) + 4 NO2(g) ΔH°rxn = -1.28 x 104 kJ
30. A 4.98 g sample of aniline (C6H5NH2, molar mass - 64.3 g/mol) was combusted in a bomb calorimeter with a heat capacity of 4.25 kJ/°C. If the temperature rose from 29.5°C to 69.8°C, determine the value of ???comb for aniline. A. +7.81 x 103 kJ/mol B. -3.20 x 103 kJ/mol Cytl .71 x 103 kJ/mol D.-1.71 x 103 kJ/mol E. -7.81 x 103 kJ/mol Given w - 0, an exothermic reaction has the following. A. +?? and-AE
A 6.55 g sample of aniline (C6H5NH2, molar mass = 93.13 g mol-1) was combusted in a bomb calorimeter with a heat capacity of 14.25 kJ °C-1. If the initial temperature was 32.9 °C, use the information below to determine the value of the final temperature of the calorimeter. 4C6H5NH2(l) + 35O2(g) ? 24CO2(g) + 14H2O(g) + 4NO2(g) ?rU° = -1.28 × 104 kJ mol-1 A) 257 °C B) 46.6 °C C) 96.1 °C D) 41.9 °C E) 931 °C...
Question 14 A 2.49 g sample of aniline (C6H5NH 2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter with a heat capacity of 4.25 kJ/°C. If the temperature rose from 29.5°C to 69.8°C, determine the value of AH comb for aniline. O +1.71 x 103 kJ/mol -3.20 * 103 kJ/mol -1.71 x 103 kJ/mol +6.40 x 103 kJ/mol O -6.40 103 kJ/mol x
A 5.0L bomb calorimeter, with a heat capacity of 14.25 kJ/°C, is filled to a pressure of 5.0 atm with O2 gas at 32.9°C. A 6.55 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was then combusted in this calorimeter. Determine the value of the final temperature of the calorimeter. 4 C6H5NH2(l) + 35 O2(g) → 24 CO2(g) + 7 H2O(g) + 2 NO2(g) ΔH°rxn= -1.28 x 104kJ/mol
A 3.250 g sample of methanol, CH_3OH, is combusted in a bomb calorimeter. The temperature of the calorimeter increases by 12.55 degree C. If the heat capacity of the bomb is 8500 J/degree C and it contains 1.200 kg of water, what is the heat evolved per mole of ethanol combusted? The specific heat capacity of water is 4.184 J/g middot K and the molar mass of methanol is 32.04 g/mol. -1321 kJ -726.4 kJ -621.2 kJ -105.2 kJ -63.01...
A 0.709 g sample of vanillin (C8H8O3, MM = 152.15) is combusted in a bomb calorimeter with a heat capacity of 5.97 kJ/ºC. Given that the heat of combustion of vanillin is -3.83x103 kJ/mol, what must the temperature change have been in the bomb calorimeter?
A 1.009 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of the calorimeter and its contents increase from 23.57 °C to 28.66 °C. The heat capacity (calorimeter constant) of the calorimeter is 30.07 kJ/C, what is the heat of combustion per gram of the material? heat of combustion: kJ/g
A 2.569 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of the calorimeter and its contents increase from 24.77 °C to 28.40 °C. The heat capacity (calorimeter constant) of the calorimeter is 33.79 kJ/ °C, what is the heat of combustion per gram of the material? heat of combustion: kJ/g
17. When combusted in a bomb calorimeter, a 12.6 g sample of acetylene (C2H2) produced a temperature increase of 16.9 °C. The calorimeter constant for the calorimeter was determined to be 31.5 kJ/°C. What is the molar heat of combustion for acetylene? a. -6.71 x 103 kJ/mol b. -1.10 x 103 kJ/mol C. -42.25 kJ/mol d. -13.5 x 103 kJ/mol e. -532 kJ/mol