Homework Answers
Add Answer to:
7. A 2.053-g sample of ethylene glycol, CH.02 (62.07 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...
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.
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.
7. A 2.529-g sample of glutaric acid, CsH.O.(132.12 g/mol) was burned in a bomb calorimeter with excess oxygen. The...
7. A 2.529-g sample of glutaric acid, CsH.O.(132.12 g/mol) was burned in a bomb calorimeter with excess oxygen. The temperature of the calorimeter and the water before combustion was 23.63 °Cafter combustion the calorimeter and the water had a temperature of 32.48 °C. The calorimeter had a heat capacity of 747 J/K, and contained 0.926 kg of water. Use these data to calculate the molar heat of combustion (in kJ) of glutaric acid.
3. A 2.200 g sample of quinone (CH,02) is burned in a bomb calorimeter whose total...
3. A 2.200 g sample of quinone (CH,02) is burned in a bomb calorimeter whose total heat capacity is 7.854 kJ/°C. The temperature of the calorimeter increases from 23.44 to 30.57°C. a. What quantity of heat was produced by the combustion of the quinone? b. What is the heat of combustion per gram of quinone? c. What is the heat of combustion per mole of quinone?
A 1.0422 g sample of powdered aluminum is burned in a constant volume bomb calorimeter containing...
A 1.0422 g sample of powdered aluminum is burned in a constant volume bomb calorimeter containing excess oxygen to form Al_2 O_3 (s) The calorimeter has a heat capacity of 8.775 kJ degree C^-1. The temperature of the calorimeter increases by 3.680 degree C. Determine the molar internal energy of combustion delta U and the molar enthalpy of combustion delta H for aluminum at 25 degree C. 4 Al (s) + 3 O_2 (g) middot 2 Al_2 O_3 (s)
Ignition wires heat sample Thermometer Stirrer A bomb calorimeter, or constant volume calorimeter...
Ignition wires heat sample Thermometer Stirrer A bomb calorimeter, or constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. Since the "bomb" itself can absorb energy, a separate experiment is needed to determine the heat capacity of the calorimeter This is known as calibrating the calorimeter In the laboratory a student burns a 0.319-g sample of phenanthrene (C14H10 in a bomb calorimeter containing 1070. g of water....
Thermometer Ignition wires heat sample Stirrer A bomb calorimeter, or a constant volume calorimeter, is a...
Thermometer Ignition wires heat sample Stirrer A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. In an experiment, a 0.6531 g sample of para-benzoquinone (CH402) is burned completely in a bomb calorimeter. The calorimeter is surrounded by 1.130x10 g of water. During the combustion the temperature increases from 24.60 to 27.48°C. The heat capacity of water is 4.184 J glock Water The...
A 0.1785 g sample of magnesium was burned in an oxygen bomb calorimeter. The total heat...
A 0.1785 g sample of magnesium was burned in an oxygen bomb calorimeter. The total heat capacity of the calorimeter plus water was 5,760 J/C. If the temperature rise of the calorimeter with water was 1.25*C, calculate the enthalpy of combustion(in kJ/mol) of magnesium. Mg(s) + 1/2O2(g) -> MgO(s) Write answer to three significant figures. Numeric Response
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 quantity of 1.922 g of methanol (CH3OH) was burned in a constant-volume bomb calorimeter. Consequently,...
A quantity of 1.922 g of methanol (CH3OH) was burned in a constant-volume bomb calorimeter. Consequently, the temperature rose by 5.52°C. If the heat capacity of the bomb plus water was 8.75 kJ / °C, calculate the molar heat of combustion of methanol.
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.
7. A 2.529-g sample of glutaric acid, CsH.O.(132.12 g/mol) was burned in a bomb calorimeter with excess oxygen. The temperature of the calorimeter and the water before combustion was 23.63 °Cafter combustion the calorimeter and the water had a temperature of 32.48 °C. The calorimeter had a heat capacity of 747 J/K, and contained 0.926 kg of water. Use these data to calculate the molar heat of combustion (in kJ) of glutaric acid.
3. A 2.200 g sample of quinone (CH,02) is burned in a bomb calorimeter whose total heat capacity is 7.854 kJ/°C. The temperature of the calorimeter increases from 23.44 to 30.57°C. a. What quantity of heat was produced by the combustion of the quinone? b. What is the heat of combustion per gram of quinone? c. What is the heat of combustion per mole of quinone?
A 1.0422 g sample of powdered aluminum is burned in a constant volume bomb calorimeter containing excess oxygen to form Al_2 O_3 (s) The calorimeter has a heat capacity of 8.775 kJ degree C^-1. The temperature of the calorimeter increases by 3.680 degree C. Determine the molar internal energy of combustion delta U and the molar enthalpy of combustion delta H for aluminum at 25 degree C. 4 Al (s) + 3 O_2 (g) middot 2 Al_2 O_3 (s)
Ignition wires heat sample Thermometer Stirrer A bomb calorimeter, or constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. Since the "bomb" itself can absorb energy, a separate experiment is needed to determine the heat capacity of the calorimeter This is known as calibrating the calorimeter In the laboratory a student burns a 0.319-g sample of phenanthrene (C14H10 in a bomb calorimeter containing 1070. g of water....
Thermometer Ignition wires heat sample Stirrer A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. In an experiment, a 0.6531 g sample of para-benzoquinone (CH402) is burned completely in a bomb calorimeter. The calorimeter is surrounded by 1.130x10 g of water. During the combustion the temperature increases from 24.60 to 27.48°C. The heat capacity of water is 4.184 J glock Water The...
A 0.1785 g sample of magnesium was burned in an oxygen bomb calorimeter. The total heat capacity of the calorimeter plus water was 5,760 J/C. If the temperature rise of the calorimeter with water was 1.25*C, calculate the enthalpy of combustion(in kJ/mol) of magnesium. Mg(s) + 1/2O2(g) -> MgO(s) Write answer to three significant figures. Numeric Response
Most questions answered within 3 hours.
-
an
ion with a charge of +1 combines with an ion that holds a charge of...
asked 1 minute ago -
For the next three problems, refer to the following coordination
compound.
[Co(en)2(H2O)(Cl)]3[Ni(CN)4]2
Name the compound:
asked 5 minutes ago -
1. If L is the complement of a language recognized by a
non-deterministic finite automaton, then...
asked 12 minutes ago -
discuss cloud assisted media sharing with the help of generic
media framework.
asked 15 minutes ago -
This and the following two questions build on the same fact
situation, with new facts added...
asked 16 minutes ago -
CYB 4301-13C-3, Cyber Security and Crime
War driving is a wireless attack. Describe at least four...
asked 18 minutes ago -
14. You just won first place in a CUNY essay writing contest,
and as your prize,...
asked 28 minutes ago -
Q#1:
Write a C++ program to enter a number, compute and print the
following:
- Sum...
asked 31 minutes ago -
What are the steps to find Gross Requirements for lot for lot
ordering MRP schedule? Show...
asked 39 minutes ago -
In a random sample of five microwave ovens, the mean repair
cost was $65.00 and the...
asked 50 minutes ago -
17) what is science ? Explain why is forming and testing
hypothesis at the core of...
asked 48 minutes ago -
The following four Cases make different assumptions with respect
to the amounts of income and deductions...
asked 49 minutes ago