When 1.986 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the...
When 1.986 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the temperature of the calorimeter increases from 22.41°C to 26.63°C. If the heat capacity of the calorimeter is 4.900 kJ/°C, what is the heat of combustion of sucrose?
Homework Answers
I have calculated the heat of combustion in both ways : for
given moles and for 1 mole (as not mentioned in question which is
to be calculated)
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When 1.986 grams of sucrose (Molar mass 342.3 g/mol) is burned
in a bomb calorimeter, the...
When 1.151 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the temperature of the calorimeter increases from 22.41°C to 26.63 °C
When 1.151 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the temperature of the calorimeter increases from 22.41°C to 26.63 °C. If the heat capacity of the calorimeter is 4.900 kJ/°C, what is the heat of combustion of sucrose?
The temperature rises from 25.00°C to 29.00°C in a bomb calorimeter when 3.50 g of sucrose undergoes combustion in a bo...
The temperature rises from 25.00°C to 29.00°C in a bomb calorimeter when 3.50 g of sucrose undergoes combustion in a bomb calorimeter. Calculate ΔErxn for the combustion of sucrose in kJ/mol sucrose. The heat capacity of the calorimeter is 4.90 kJ/°C. The molar mass of sugar is 342.3 g/mol
The temperature rises from 25.00°C to 29.00°C in a bomb calorimeter when 3.50 g of sucrose undergoes combustion in a bo...
The temperature rises from 25.00°C to 29.00°C in a bomb calorimeter when 3.50 g of sucrose undergoes combustion in a bomb calorimeter. Calculate ΔErxn for the combustion of sucrose in kJ/mol sucrose. The heat capacity of the calorimeter is 4.90 kJ/°C. The molar mass of sugar is 342.3 g/mol
3) The temperature rises from 24.00 °C to 27.00 °C in a bomb calorimeter when 4.50...
3) The temperature rises from 24.00 °C to 27.00 °C in a bomb calorimeter when 4.50 g of sucrose undergoes combustion in a bomb calorimeter. Calculate AHrxn for the combustion of sucrose in kJ/mol sucrose. The heat capacity of the calorimeter is 4.90 kJ/°C. The molar mass of sugar is 342.3 g/mol. (4 points)
When 0.0801 mol of an unknown hydrocarbon is burned in a bomb calorimeter, the calorimeter increases in temperature by 2.19°C
When 0.0801 mol of an unknown hydrocarbon is burned in a bomb calorimeter, the calorimeter increases in temperature by 2.19°C. If the heat capacity of the bomb calorimeter is 1.229 kJ/°C, what is the heat of combustion for the unknown hydrocarbon?
A 0.54 g sample of fructose (MW = 180. g/mol) is burned in a bomb calorimeter...
A 0.54 g sample of fructose (MW = 180. g/mol) is burned in a bomb calorimeter that has a heat capacity of 2.69 kJ/oC. The temperature of the calorimeter increases by 3.16oC. Calculate the molar heat of combustion of fructose using the data from this experiment. Since this experiment is carried out under conditions of constant volume, we are measuring ∆E. Your answer should be in kJ/mol and entered to 3 sig. fig. ∆E=?
A 1.764-g sample of heptanoic acid, C7H14O2 (130.19 g/mol) was burned in a bomb calorimeter with...
A 1.764-g sample of heptanoic acid, C7H14O2 (130.19 g/mol) was burned in a bomb calorimeter with excess oxygen. The temperature of the calorimeter and the water before combustion was 23.68 °C; after combustion the calorimeter and the water had a temperature of 32.12 °C. The calorimeter had a heat capacity of 500 J/K, and contained 1.462 kg of water. Use these data to calculate the molar heat of combustion (in kJ) of heptanoic acid.
A 0.44 mol sample of a substance is burned in a bomb calorimeter with a heat...
A 0.44 mol sample of a substance is burned in a bomb calorimeter with a heat capacity of 8.87 kJ/C. The temperature increases by 8.36 C. What is ΔHrxn (in kJ/mol) for the combustion of the substance?
Determine the heat of combustion of sucrose (C12H22O11) in kJ/mol if 2.00g of sucrose is burned...
Determine the heat of combustion of sucrose (C12H22O11) in kJ/mol if 2.00g of sucrose is burned in a bomb calorimeter, and the temperature of the calorimeter rose from 25.33C to 28.17C. The heat capacity of the calorimeter is 11.6kJ/C.
7. A 2.548-9 sample of valine, CsH ,NO, (117.15 g/mol) was burned in a bomb calorimeter...
7. A 2.548-9 sample of valine, CsH ,NO, (117.15 g/mol) was burned in a bomb calorimeter with excess oxygen. The temperature of the calorimeter and the water before combustion was 18.42 °C, after combustion the calorimeter and the water had a temperature of 29.13 °C. The calorimeter had a heat capacity of 633 J/K, and contained 1.255 kg of water. Use these data to calculate the molar heat of combustion (in kJ) of valine.
3) The temperature rises from 24.00 °C to 27.00 °C in a bomb calorimeter when 4.50 g of sucrose undergoes combustion in a bomb calorimeter. Calculate AHrxn for the combustion of sucrose in kJ/mol sucrose. The heat capacity of the calorimeter is 4.90 kJ/°C. The molar mass of sugar is 342.3 g/mol. (4 points)
7. A 2.548-9 sample of valine, CsH ,NO, (117.15 g/mol) was burned in a bomb calorimeter with excess oxygen. The temperature of the calorimeter and the water before combustion was 18.42 °C, after combustion the calorimeter and the water had a temperature of 29.13 °C. The calorimeter had a heat capacity of 633 J/K, and contained 1.255 kg of water. Use these data to calculate the molar heat of combustion (in kJ) of valine.
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