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30. A 4.98 g sample of aniline (C6H5NH2, molar mass - 64.3 g/mol) was combusted in...
Question 14 A 2.49 g sample of aniline (C6H5NH 2, molar mass = 93.13 g/mol) was...
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 4.98 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter with a heat capacit...
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/
A 6.55 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter. If the temperature...
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
A 6.55 g sample of aniline (C6H5NH2, molar mass = 93.13 g mol-1) was combusted in...
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...
17. When combusted in a bomb calorimeter, a 12.6 g sample of acetylene (C2H2) produced a...
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
A 5.0L bomb calorimeter, with a heat capacity of 14.25 kJ/°C, is filled to a pressure...
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...
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...
please help me with all the questions thank you 38) Determine the final temperature of a...
please help me with all the questions thank you
38) Determine the final temperature of a gold nugget (mass 376 g) that starts at 398 K and loses 4.85 kJ of heat to a snowbank when it is lost. The specific heat capacity of gold is 0.128 J/g°c A) 133 K B) 398 K C) 187 K D) 297 K E) 377 K 39) A 6.55 g sample of aniline (C6H5NH2, molar mass 93.13 g/mol) was combusted in a bomb...
When 5.00 g adenine (C5H5N5, 135.1 g/mol) is combusted in a bomb calorimeter, 103 kJ of heat is released and a temperature increase of 23.6 C is noted. In the same calorimeter, 5.00 g guanine (C5H5...
When 5.00 g adenine (C5H5N5, 135.1 g/mol) is combusted in a bomb calorimeter, 103 kJ of heat is released and a temperature increase of 23.6 C is noted. In the same calorimeter, 5.00 g guanine (C5H5N5O, 151.1 g/mol) is combusted, and a temperature increase of 19.0 C is observed. What is the enthalpy of combustion per mol of guanine?
A 35.6 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter, according to the following reaction. If the...
A 35.6 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter, according to the following reaction. If the temperature rose from 35.0 to 76.0°C and the heat capacity of the calorimeter is 23.3 kJ/°C, what is the value of DH°rxn? The molar mass of ethanol is 46.07 g/mol. C2H5OH(l) + O2(g) → CO2(g) + H2O(g) ΔH°rxn = ? (Points : 1) -1.24 × 103 kJ/mol +1.24 × 103 kJ/mol -8.09 × 103 kJ/mol -9.55 × 103 kJ/mol...
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
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
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...
please help me with all the questions thank you
38) Determine the final temperature of a gold nugget (mass 376 g) that starts at 398 K and loses 4.85 kJ of heat to a snowbank when it is lost. The specific heat capacity of gold is 0.128 J/g°c A) 133 K B) 398 K C) 187 K D) 297 K E) 377 K 39) A 6.55 g sample of aniline (C6H5NH2, molar mass 93.13 g/mol) was combusted in a bomb...
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