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Recent questions in Chemistry
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Calculate the amount of heat required to sublimate 10 grams of dry ice (solid carbon dioxide) at a temperature of -78.5°C. The heat of sublimation of carbon dioxide is 25.2 kJ/mol.
asked
Jan 23
in
ThermoChemistry
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BYUBlake479
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0
votes
1
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105
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Calculate the amount of heat required to raise the temperature of 50 grams of water from 25°C to 85°C, given the specific heat of water is 4.184 J/g°C.
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Jan 23
in
ThermoChemistry
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AgnesXyg5256
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2.0k
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1
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124
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Calculate the amount of heat required to raise the temperature of 50 g of water from 25°C to 100°C, given the specific heat capacity of water is 4.18 J/g°C.
asked
Jan 23
in
Chemical thermodynamics
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AzucenaGrasb
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1.6k
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1
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85
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Calculate the amount of heat required to polymerize 2 moles of styrene into polystyrene given the following information:The enthalpy of polymerization for styrene is -56 kJ/mol and the reaction is exothermic.
asked
Jan 23
in
ThermoChemistry
by
NamSampson2
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1.8k
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0
votes
1
answer
96
views
Calculate the amount of heat required to melt 50 grams of ice at 0°C, given that the enthalpy of fusion of ice is 6.01 kJ/mol.
asked
Jan 23
in
ThermoChemistry
by
FelixTolmer3
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1.9k
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0
votes
1
answer
81
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Calculate the amount of heat required to melt 50 grams of ice at 0°C and convert it into liquid water at the same temperature. The enthalpy of fusion of ice is 6.01 kJ/mol.
asked
Jan 23
in
ThermoChemistry
by
LeathaOchoa
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1.7k
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0
votes
1
answer
90
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Calculate the amount of heat required to melt 50 grams of ice at 0 C, taking the enthalpy of fusion to be 6.01 kJ/mol.
asked
Jan 23
in
ThermoChemistry
by
BrodieUus47
(
1.7k
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0
votes
1
answer
93
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Calculate the amount of heat required to melt 25 grams of ice at 0°C. The enthalpy of fusion of ice is 6.01 kJ/mol.
asked
Jan 23
in
ThermoChemistry
by
EmilySulman6
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2.0k
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0
votes
1
answer
103
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Calculate the amount of heat required to melt 20 grams of ice at 0°C and convert it to liquid water at 0°C. The enthalpy of fusion of water is 6.01 kJ/mol. Show all the steps of your calculations.
asked
Jan 23
in
ThermoChemistry
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NilaBody107
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1.7k
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0
votes
1
answer
99
views
Calculate the amount of heat required to break all the bonds in 5 moles of carbon dioxide using the bond energy values for the C=O bond and the O-H bond.
asked
Jan 23
in
Chemical reactions
by
MacLgq130601
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2.4k
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votes
1
answer
103
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Calculate the amount of heat released when 50 grams of NaOH is dissolved in 500 mL of water at 25°C. The heat of crystallization of NaOH is -44.51 kJ/mol. Assume the final temperature of the solution is 25°C and the heat capacity of the solution is 4.18 J/g °C.
asked
Jan 23
in
ThermoChemistry
by
RenaBrower51
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1.7k
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0
votes
1
answer
88
views
Calculate the amount of heat released when 25 g of NaCl is crystallized from a solution at its saturation point. The heat of crystallization of NaCl is -788 J/g.
asked
Jan 23
in
ThermoChemistry
by
NiklasCave18
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1.6k
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0
votes
1
answer
102
views
Calculate the amount of heat released when 10.0 g of methane gas (CH4) is burned in excess oxygen at constant pressure, given that the enthalpy of combustion of methane is -890.3 kJ/mol.
asked
Jan 23
in
Physical Chemistry
by
MarcyVallejo
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2.2k
points)
0
votes
1
answer
108
views
Calculate the amount of heat released when 10.0 g of methane (CH4) is burned completely in excess oxygen if the enthalpy of combustion of methane is -890 kJ/mol.
asked
Jan 23
in
Physical Chemistry
by
092347908024
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1.7k
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0
votes
1
answer
107
views
Calculate the amount of heat released when 0.5 moles of propane, C3H8, combust completely in oxygen gas, O2, according to the following balanced equation:C3H8(g) + 5O2(g) -> 3CO2(g) + 4H2O(l), ∆H = -2220 kJ/mol.
asked
Jan 23
in
ThermoChemistry
by
MargueriteWa
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1.8k
points)
0
votes
1
answer
104
views
Calculate the amount of heat energy required to melt 25 grams of ice at 0°C, given that the enthalpy of fusion of ice is 6.01 kJ/mol.
asked
Jan 23
in
ThermoChemistry
by
IsabellFrome
(
2.1k
points)
0
votes
1
answer
106
views
Calculate the amount of heat energy required to melt 20 grams of ice at 0°C and determine the final temperature of the resulting water if the enthalpy of fusion of ice is 6.01 kJ/mol and the specific heat capacity of water is 4.18 J/(g·°C).
asked
Jan 23
in
ThermoChemistry
by
CamillePiazz
(
1.8k
points)
0
votes
1
answer
92
views
Calculate the amount of heat energy released when 50 mL of 1 M hydrochloric acid (HCl) is mixed with 50 mL of 1 M sodium hydroxide (NaOH) solution. The heat of neutralization for the reaction between HCl and NaOH is -57.1 kJ/mol.
asked
Jan 23
in
ThermoChemistry
by
AbbeyBisson8
(
1.9k
points)
0
votes
1
answer
98
views
Calculate the amount of heat energy needed to melt a 25-g ice cube at its melting point of 0°C. The enthalpy of fusion of water is 6.01 kJ/mol.
asked
Jan 23
in
ThermoChemistry
by
NelleVxq8414
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1.5k
points)
0
votes
1
answer
81
views
Calculate the amount of heat absorbed when 32 grams of ice at -10°C melts into water and then further heated to 35°C. (Given: Enthalpy of fusion of ice = 6.01 kJ/mol and specific heat of water = 4.18 J/g°C)
asked
Jan 23
in
ThermoChemistry
by
Beatris65S46
(
1.9k
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