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Recent questions in ThermoChemistry
0
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1
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Calculate the enthalpy change for the hydrolysis of 50 grams of sucrose (C12H22O11) when dissolved in 500 ml of water at 25°C. The molar mass of sucrose is 342.3 g/mol and the enthalpy change per mole of sucrose is -564.8 kJ/mol.
asked
Jan 23
in
ThermoChemistry
by
JeffereyHail
(
430
points)
0
votes
1
answer
55
views
Calculate the enthalpy change for the hydrolysis of 5.5 grams of sucrose (C12H22O11) using the standard enthalpy of formation values of the products and reactants. Assume the reaction takes place at constant pressure and temperature of 25°C.
asked
Jan 23
in
ThermoChemistry
by
JoshuaStamps
(
290
points)
0
votes
1
answer
43
views
Calculate the enthalpy change for the hydrolysis of 5 moles of methyl acetate using the given bond enthalpies: C-O (360 kJ/mol), C=O (740 kJ/mol), O-H (460 kJ/mol), and C-H (410 kJ/mol).
asked
Jan 23
in
ThermoChemistry
by
LanePeacock
(
410
points)
0
votes
1
answer
44
views
Calculate the enthalpy change for the hydrolysis of 2 moles of sucrose (C12H22O11) into glucose (C6H12O6) and fructose (C6H12O6), given the enthalpy change of hydrolysis for glucose and fructose are -2801 and -2802 kJ/mol respectively.
asked
Jan 23
in
ThermoChemistry
by
Zack25G18861
(
490
points)
0
votes
1
answer
48
views
Calculate the enthalpy change for the hydrolysis of 2 moles of sucrose (C12H22O11) into glucose (C6H12O6) and fructose (C6H12O6) given the following information:- Enthalpy of formation of glucose = -1273 kJ/mol- Enthalpy of formation of fructose = -1260 kJ/mol- Enthalpy of formation of sucrose = -2226 kJ/mol
asked
Jan 23
in
ThermoChemistry
by
Gregg1627959
(
890
points)
0
votes
1
answer
52
views
Calculate the enthalpy change for the hydrolysis of 2 moles of sucrose (C12H22O11) in aqueous solution given that the heat capacity of the solution is 4.18 J/g.K, the initial and final temperatures of the solution are 22.0°C and 28.0°C respectively. The molar mass of sucrose is 342.3 g/mol.
asked
Jan 23
in
ThermoChemistry
by
AugustinaLjy
(
470
points)
0
votes
1
answer
42
views
Calculate the enthalpy change for the hydrolysis of 2 moles of sucrose (C12H22O11) if it releases 5184 kJ/mol of energy.
asked
Jan 23
in
ThermoChemistry
by
JosephDelato
(
440
points)
0
votes
1
answer
30
views
Calculate the enthalpy change for the hydrolysis of 2 moles of sucrose (C12H22O11) given the standard enthalpies of formation of sucrose, glucose, and fructose are -2220 kJ/mol, -1274 kJ/mol, and -915 kJ/mol respectively.
asked
Jan 23
in
ThermoChemistry
by
JefferySerra
(
590
points)
0
votes
1
answer
40
views
Calculate the enthalpy change for the hydrolysis of 2 moles of sucrose (C12H22O11) given that the enthalpy change of hydrolysis for 1 mole of sucrose is -564 kJ/mol.
asked
Jan 23
in
ThermoChemistry
by
EzequielKrug
(
170
points)
0
votes
1
answer
41
views
Calculate the enthalpy change for the hydrolysis of 2 moles of magnesium bromide, MgBr2, in water, given that the standard enthalpy change of formation of magnesium oxide, MgO, is -601.6 kJ/mol and the standard enthalpy change of formation of hydrogen bromide, HBr, is -36.3 kJ/mol.
asked
Jan 23
in
ThermoChemistry
by
MargaretaBal
(
570
points)
0
votes
1
answer
48
views
Calculate the enthalpy change for the hydrolysis of 10 grams of sodium acetate (NaOH) at 25°C, given the following information:- The specific heat capacity of the solution is 4.18 J/(g·°C)- The initial temperature of the solution is 25°C- The final temperature of the solution after hydrolysis is 30°C- The heat evolved by the reaction is 677 J.
asked
Jan 23
in
ThermoChemistry
by
Woodrow18V43
(
430
points)
0
votes
1
answer
33
views
Calculate the enthalpy change for the hydrolysis of 0.1 moles of sucrose in water given the following information: - The enthalpy change of the reaction is -564 kJ/mol.- The molar mass of sucrose is 342.3 g/mol.- The reaction is exothermic.
asked
Jan 23
in
ThermoChemistry
by
EtsukoGunter
(
330
points)
0
votes
1
answer
54
views
Calculate the enthalpy change for the hydrolysis of 0.025 moles of ethyl acetate (C4H8O2) in the presence of excess water, given that the enthalpy of reaction is -56.0 kJ/mol.
asked
Jan 23
in
ThermoChemistry
by
OctaviaBarne
(
450
points)
0
votes
1
answer
53
views
Calculate the enthalpy change for the hydration of MgSO4 using the following data:MgSO4(s) → MgSO4(aq) ΔH1 = 44.5 kJ/molMgSO4(aq) + 7H2O(l) → MgSO4 • 7H2O(s) ΔH2 = -63.2 kJ/mol.
asked
Jan 23
in
ThermoChemistry
by
LeandroOxley
(
410
points)
0
votes
1
answer
37
views
Calculate the enthalpy change for the fusion of 50.0 g of ice at its melting point (0 °C). The molar enthalpy of fusion of water is 6.01 kJ/mol.
asked
Jan 23
in
ThermoChemistry
by
JoyMarkley53
(
710
points)
0
votes
1
answer
36
views
Calculate the enthalpy change for the following reaction using Hess's Law calculations:2H2S(g) + 3O2(g) → 2H2O(l) + 2SO2(g)Given the following information:2H2(g) + O2(g) → 2H2O(l) ΔH1 = -484 kJ/mol2S(s) + 3O2(g) → 2SO3(g) ΔH2 = -791 kJ/mol2H2(g) + S(s) → 2H2S(g) ΔH3 = -36 kJ/mol
asked
Jan 23
in
ThermoChemistry
by
ElaneLavarac
(
590
points)
0
votes
1
answer
59
views
Calculate the enthalpy change for the following polymerization reaction: 2 C2H4 (g) → C4H8 (g) Given the following bond enthalpies: C-H = 413 kJ/mol, C-C = 348 kJ/mol, C=C = 611 kJ/mol Assume all reactants and products are gases at 298 K and 1 atm.
asked
Jan 23
in
ThermoChemistry
by
Melba39X6163
(
550
points)
0
votes
1
answer
5
views
Calculate the enthalpy change for the following combustion reaction:C2H6(g) + 7/2 O2(g) --> 2CO2(g) + 3H2O(l)Using the following reactions and their corresponding enthalpies of formation:C2H6(g) + 3 1/2 O2(g) --> 2CO2(g) + 3H2O(l) ΔH°f = -1560 kJ/mol2H2(g) + O2(g) --> 2H2O(l) ΔH°f = -484 kJ/mol.
asked
Jan 23
in
ThermoChemistry
by
HeribertoBow
(
490
points)
0
votes
1
answer
50
views
Calculate the enthalpy change for the dissolution of 5.00 g of sodium hydroxide (NaOH) in 100.0 g of water (H2O). The temperature change was measured to be -3.45°C. Given that the specific heat of water is 4.18 J/g°C and the density of water is 1.00 g/mL. (Assume that the heat evolved from NaOH is absorbed by the water.)
asked
Jan 23
in
ThermoChemistry
by
ChauBaldridg
(
350
points)
0
votes
1
answer
84
views
Calculate the enthalpy change for the dissolution of 5.00 g of potassium chloride (KCl) in 100 mL of water. Given that the specific heat capacity of the resulting solution is 4.18 J/g°C, and its temperature increases from 25.0°C to 30.0°C. The molar mass of KCl is 74.55 g/mol, and the enthalpy of hydration of K+ and Cl- ions is -716 and -364 kJ/mol, respectively.
asked
Jan 23
in
ThermoChemistry
by
MarcelaDeros
(
910
points)
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Recent questions in ThermoChemistry
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