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12/18 122 points How many grams of charcoal (CH,O) would need to be combusted in order...
10) How many grams of ice do I need to add to the 356 grams of...
10) How many grams of ice do I need to add to the 356 grams of my soda if I wish to lower the temperature of my soda from 21.8°C to 3.9°C. Assume that the specific heat of the soda is 4.172 J/g⋅C°. The specific heat of water is 4.184 J/g⋅C°. The heat capacity of the glass is 56.4 J/C°. The molar enthalpy of fusion (melting) of ice is 6.018 kJ/mol.
The reaction is as follows: The enthalpy of reaction between methane (fontsize(2) CH.4) and oxyge...
The reaction is as follows: The enthalpy of reaction between methane (fontsize(2) CH.4) and oxygen fontsize(2) 0.2) is exothermic (-882 kJ/mol) with respect to the dissipation of methane. It is of interest to generate 139928 KJ or energy trom the combustion. How many kg of metnane will need to be combusted? Molecular weight C-12 kg/kmol H-1 kg/kmol 0-16 kg/kmol
The reaction is as follows: The enthalpy of reaction between methane (fontsize(2) CH.4) and oxygen fontsize(2) 0.2) is exothermic (-882 kJ/mol)...
Calorimetry Problems: AH = m(at), Exercise #6: Enthalpy Problems 300 kg of water cools from 5...
Calorimetry Problems: AH = m(at), Exercise #6: Enthalpy Problems 300 kg of water cools from 5 to 20 How much beat energy was released by the water? Co H2O(l) is 4.180 J/gºC. 4. How much heat energy is required to heat 45 g of sheet Fe from 24°C to 200."C?, of Fe(s) is 0.449 J/gºC. 3. A food chemist combusts 56 g of a chocolate bar in a calorimeter containing 1.5 L of water (density Ho mL). The initial temperature...
11 Question (3 points) @ See page 253 Use the data in the table below to...
11 Question (3 points) @ See page 253 Use the data in the table below to answer the following questions: Compound CH3NH2() O2(g) CO2(g) NO2(g) H2011) A Hºf (kJ/mol) -23.0 0.0 -393.5 33.2 -285.8 1st attempt Part 1 (1.5 points) See Periodic Table See Hint Methanol and methylamine are both combustible fuels. How many grams of methylamine must be combusted to raise the temperature of 377 g of water from 15.0°C to 46.0°C? Assume that the transfer of heat from...
6. Calculate the energy in the form of heat (in k.J) required to convert 100.0 grams...
6. Calculate the energy in the form of heat (in k.J) required to convert 100.0 grams of liquid water at 80.0°C to steam at 122 °C. Assume that no energy in the form of heat is transferred to the environment. (Heat of fusion 333 J/g; heat of vaporization 2256 J/g; specific heat capacities: liquid water 4.184 J/g K, steam 1.92 J/g K) (a) 238 kJ (b) 226 kJ (c) 4.22 kJ (d) 8.37 kJ (e) 17.6 kJ 7. The thermochemical...
How much propane, C5H12 (l), in both g and mL would you need to combust in...
How much propane, C5H12 (l), in both g and mL would you need to combust in order to produce enough heat to heat up 2 cups of water, or approximately 5.00 x 102 mL, from 22.0 ̊C to 95.0 ̊C? Assume that all the heat from the combustion directly goes to heating the water, no heat is lost to the surroundings. (density of water is 1.00 g/mL and density of C5H12 is 0.624 g/mL; ΔH°f, pentane = 121.7kJ/mol; use your...
How many grams of ice must melt in order to remove 1,334 kJ of heat from...
How many grams of ice must melt in order to remove 1,334 kJ of heat from an exhibit? Use 0.334 kJ/g as the heat of fusion of water. Consider only the heat absorbed during the phase change in your answer.
2 KCIO, 2 KCI + 30, 10. How many grams of O, will be formed from...
2 KCIO, 2 KCI + 30, 10. How many grams of O, will be formed from 3.76 grams of KCIO. 3.76g KCIO. I mol KCIO, mol - 80 122.55 g KCIO,_mol KCIO, _mol O, 11. How many grams of KCIO, are needed to make 300 grams of KCI? 30.0 g KCI m ol KCI mol KCIO, _ KCIO, — g KCI - mol KCI Lmol KCIO, 12. How many grams of KCl will be formed from 2.73 g of KCIO,?...
How much heat will be absorbed when a gold coin weighing 6,00 g rises from-22.5°C to...
How much heat will be absorbed when a gold coin weighing 6,00 g rises from-22.5°C to 25.0°C? 0 -23.1 O 32.13 0 -723) O 365) Question 18 2 pts When 0.514 g of biphenyl undergoes combustion in a bomb calorimetr, the temperature rises by 3.6 °C. What amount of heat is released during the combustion of biphenyl? The heat capacity of the bomb calorimeter is 5.86 kJ/°C 0 -32kirc 0-21kirc 046urc O-17 rc Question 19 2 pts Ethanol (C2H5OH) is...
Problem 3 please I'm not understanding. Please tell how you got the answer step by step...
Problem 3 please I'm not understanding. Please tell how
you got the answer step by step and the equation used !
Thanks
Date 1. Calculate AE for a system undergoing an endothermic process in which 25.3 kJ of heat flows and where 4.6 kJ of work is done on the system. 2. Calculate the work associated with the compression of a gas from 52 L. to 33 L at a constant external pressure of 16 atm. 3. How many grams...
The reaction is as follows: The enthalpy of reaction between methane (fontsize(2) CH.4) and oxygen fontsize(2) 0.2) is exothermic (-882 kJ/mol) with respect to the dissipation of methane. It is of interest to generate 139928 KJ or energy trom the combustion. How many kg of metnane will need to be combusted? Molecular weight C-12 kg/kmol H-1 kg/kmol 0-16 kg/kmol
The reaction is as follows: The enthalpy of reaction between methane (fontsize(2) CH.4) and oxygen fontsize(2) 0.2) is exothermic (-882 kJ/mol)...
Calorimetry Problems: AH = m(at), Exercise #6: Enthalpy Problems 300 kg of water cools from 5 to 20 How much beat energy was released by the water? Co H2O(l) is 4.180 J/gºC. 4. How much heat energy is required to heat 45 g of sheet Fe from 24°C to 200."C?, of Fe(s) is 0.449 J/gºC. 3. A food chemist combusts 56 g of a chocolate bar in a calorimeter containing 1.5 L of water (density Ho mL). The initial temperature...
11 Question (3 points) @ See page 253 Use the data in the table below to answer the following questions: Compound CH3NH2() O2(g) CO2(g) NO2(g) H2011) A Hºf (kJ/mol) -23.0 0.0 -393.5 33.2 -285.8 1st attempt Part 1 (1.5 points) See Periodic Table See Hint Methanol and methylamine are both combustible fuels. How many grams of methylamine must be combusted to raise the temperature of 377 g of water from 15.0°C to 46.0°C? Assume that the transfer of heat from...
6. Calculate the energy in the form of heat (in k.J) required to convert 100.0 grams of liquid water at 80.0°C to steam at 122 °C. Assume that no energy in the form of heat is transferred to the environment. (Heat of fusion 333 J/g; heat of vaporization 2256 J/g; specific heat capacities: liquid water 4.184 J/g K, steam 1.92 J/g K) (a) 238 kJ (b) 226 kJ (c) 4.22 kJ (d) 8.37 kJ (e) 17.6 kJ 7. The thermochemical...
2 KCIO, 2 KCI + 30, 10. How many grams of O, will be formed from 3.76 grams of KCIO. 3.76g KCIO. I mol KCIO, mol - 80 122.55 g KCIO,_mol KCIO, _mol O, 11. How many grams of KCIO, are needed to make 300 grams of KCI? 30.0 g KCI m ol KCI mol KCIO, _ KCIO, — g KCI - mol KCI Lmol KCIO, 12. How many grams of KCl will be formed from 2.73 g of KCIO,?...
How much heat will be absorbed when a gold coin weighing 6,00 g rises from-22.5°C to 25.0°C? 0 -23.1 O 32.13 0 -723) O 365) Question 18 2 pts When 0.514 g of biphenyl undergoes combustion in a bomb calorimetr, the temperature rises by 3.6 °C. What amount of heat is released during the combustion of biphenyl? The heat capacity of the bomb calorimeter is 5.86 kJ/°C 0 -32kirc 0-21kirc 046urc O-17 rc Question 19 2 pts Ethanol (C2H5OH) is...
Problem 3 please I'm not understanding. Please tell how
you got the answer step by step and the equation used !
Thanks
Date 1. Calculate AE for a system undergoing an endothermic process in which 25.3 kJ of heat flows and where 4.6 kJ of work is done on the system. 2. Calculate the work associated with the compression of a gas from 52 L. to 33 L at a constant external pressure of 16 atm. 3. How many grams...
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