Homework Answers
first write the equations and rearrange them to obtain
the final equation and then calculate the final delta H value as
follows
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6. Calculate the enthalpy of reaction for the process: D+F→G+M A+B + C +G AH° =...
a. b. Consider the follow equations: A+B →D AH° = -70.0 kJ E +2 F →...
a.
b.
Consider the follow equations: A+B →D AH° = -70.0 kJ E +2 F → A AH° = -20.0 kJ C + E +2D AH° = -300.0 kJ Calculate the AHⓇ for the reaction: C+2 F → 3 A +2 B Calculate the enthalpy of reaction for the process: D+FG+M A + B + C +G AH° = 100.0 kJ AC+F AH° = -300.0 kJ D+M+B AH° = -150.0 kJ
[32] The enthalpy of reaction for [6] enthalpy of reaction for the combustion of C to CO, is-393.5 kJ/mol C, and th...
[32] The enthalpy of reaction for [6] enthalpy of reaction for the combustion of C to CO, is-393.5 kJ/mol C, and the enthalpy for the combustion of CO to CO, is-283.0 kJ/mol CO: (i) C(s) + O2(g) + CO2(e) AH -393.5 kJ CO(g) + O2(g) + CO2(g) AH -283.0 kJ Using these data, calculate the enthalpy for the combustion of C to CO. (iii) C(s) + O2(g) - CO(g) AH-?
Part A Calculate the enthalpy change, AH, for the process in which 16.0 g of water...
Part A Calculate the enthalpy change, AH, for the process in which 16.0 g of water is converted from liquid at 15.2 °C to vapor at 25.0 °C. For water, AH vap - 44,0 kJ/mol at 25.0 °C and C = 4.18 J/(8°C) for H, O(1).
19. The standard enthalpy of formation for NH (g) is -46.1 kJmolCalculate AH for the reaction...
19. The standard enthalpy of formation for NH (g) is -46.1 kJmolCalculate AH for the reaction 2NH(g)N() 3H.() B 46.1 kJ (A) -92.2 kJ Di 922 kJ (C) 46.1 k 4. Calculate the change in enthalpy (in kJ per mole of CO) for the decomposition of sodium hydrogen carbonate from AH kJmol' NaHCO,(s) Na,CO,(s) H,O() CO (g) the standard enthalpies of formation: 2 NaHCO,(s) Na CO,(s)H0(g) -947.7 -1130.9 -241.8 -393.5 CO(e) (B -818.5 C -1766.2 (D) -3661.6 A 129.2 9....
Given the thermochemical equations A(g) — Bg AH = 70 kJ B(g) — C(g) AH = -140 kJ find the enthalpy changes for each...
Given the thermochemical equations A(g) — Bg AH = 70 kJ B(g) — C(g) AH = -140 kJ find the enthalpy changes for each reaction 3 A(g) — 3Bg AH = B(g) Ag) AH = A(g) -C(O) AH =
6. Hess's Law. Use the data in Table 1 to calculate AH for the reaction below:...
6. Hess's Law. Use the data in Table 1 to calculate AH for the reaction below: Table 1. Change in Enthalpy for Reactions Reactions Change in Enthalpy (AH) AH = -393.5 kJ/mol (1) C() (2) Hz((g) + + O2(g) O2(g) → CO2(8) → H2O(l) AH2 = -285.8 kJ/mol (3) 2CH.(g) + 702(g) → 4 CO2(g)+ 6H2O(1) AH = -283.0 kJ/mol Calculate the enthalpy change for the reaction: 2 C(s) + 3H2(g) → CzH6(g) AH = kJ/mol
6. Hess's Law. Use the data in Table 1 to calculate AH for the reaction below:...
6. Hess's Law. Use the data in Table 1 to calculate AH for the reaction below: Table 1. Change in Enthalpy for Reactions Reactions Change in Enthalpy (AH) AH = -393.5 kJ/mol (1) C() (2) Hz((g) + + O2(g) O2(g) → CO2(8) → H2O(l) AH2 = -285.8 kJ/mol (3) 2CH.(g) + 702(g) → 4 CO2(g)+ 6H2O(1) AH = -283.0 kJ/mol Calculate the enthalpy change for the reaction: 2 C(s) + 3H2(g) → CzH6(g) AH = kJ/mol
6. Calculate AH Reaction for the Reaction: N2H4 + 2N2O5 + 2HNO3 + 2NO2 + 2...
6. Calculate AH Reaction for the Reaction: N2H4 + 2N2O5 + 2HNO3 + 2NO2 + 2 NH Using the following equations: H2 + 2N2 + 5022HNO3 + 2NO2 N2H4 + 2NH + H2 2N205 2N2 + 502 AH = -202 kJ AH = +567 kJ AH = +22.6 kJ 7. Calculate the AHReaction for the reaction 2H2(g) + CO(g) → CH3OH(1) Using the following equations: CH3OH() + O2(g) → C(s) + 2H2O() C(s) + 02 (9) — CO(g) H2(g) +...
5. Calculate the enthalpy of formation of carbon dioxide in the following reaction: C(s) + O2(g)...
5. Calculate the enthalpy of formation of carbon dioxide in the following reaction: C(s) + O2(g) - CO. (g) 213 Use the following equations: 2) H.O (0) -- H() .O() AH: 285.8 kJ/mol b) CH. (g) -- 2C). 3H2(g) AH: +84.7 kJ/mol c) 200,(e) +3H.0 (6-- C.H. (B). (7/2)0,() AH - 1560.7 kJ/mol
Question 4 of 4 > The enthalpy changes, AH, for three reactions are given. H, ()0,()H,O)...
Question 4 of 4 > The enthalpy changes, AH, for three reactions are given. H, ()0,()H,O) Ca(s) +2H (aq) Ca2 (aq) +H,(g) CaO(s) +2H (aq) - AH=-286 kJ/mol AH= -544 kJ/mol Ca2 (aq) +H,O() AH =-193 kJ/mol Using Hess's law, calculate the heat of formation for CaO(s) using the reaction shown. 0,()Ca) Ca(s) + kJ/mol ΔΗ- TOOLS During an experiment, a student adds 1.81 g CaO to 300.0 mL of 1.000 M HCI. The student observès a temperature increase of...
a.
b.
Consider the follow equations: A+B →D AH° = -70.0 kJ E +2 F → A AH° = -20.0 kJ C + E +2D AH° = -300.0 kJ Calculate the AHⓇ for the reaction: C+2 F → 3 A +2 B Calculate the enthalpy of reaction for the process: D+FG+M A + B + C +G AH° = 100.0 kJ AC+F AH° = -300.0 kJ D+M+B AH° = -150.0 kJ
[32] The enthalpy of reaction for [6] enthalpy of reaction for the combustion of C to CO, is-393.5 kJ/mol C, and the enthalpy for the combustion of CO to CO, is-283.0 kJ/mol CO: (i) C(s) + O2(g) + CO2(e) AH -393.5 kJ CO(g) + O2(g) + CO2(g) AH -283.0 kJ Using these data, calculate the enthalpy for the combustion of C to CO. (iii) C(s) + O2(g) - CO(g) AH-?
Part A Calculate the enthalpy change, AH, for the process in which 16.0 g of water is converted from liquid at 15.2 °C to vapor at 25.0 °C. For water, AH vap - 44,0 kJ/mol at 25.0 °C and C = 4.18 J/(8°C) for H, O(1).
19. The standard enthalpy of formation for NH (g) is -46.1 kJmolCalculate AH for the reaction 2NH(g)N() 3H.() B 46.1 kJ (A) -92.2 kJ Di 922 kJ (C) 46.1 k 4. Calculate the change in enthalpy (in kJ per mole of CO) for the decomposition of sodium hydrogen carbonate from AH kJmol' NaHCO,(s) Na,CO,(s) H,O() CO (g) the standard enthalpies of formation: 2 NaHCO,(s) Na CO,(s)H0(g) -947.7 -1130.9 -241.8 -393.5 CO(e) (B -818.5 C -1766.2 (D) -3661.6 A 129.2 9....
Given the thermochemical equations A(g) — Bg AH = 70 kJ B(g) — C(g) AH = -140 kJ find the enthalpy changes for each reaction 3 A(g) — 3Bg AH = B(g) Ag) AH = A(g) -C(O) AH =
6. Hess's Law. Use the data in Table 1 to calculate AH for the reaction below: Table 1. Change in Enthalpy for Reactions Reactions Change in Enthalpy (AH) AH = -393.5 kJ/mol (1) C() (2) Hz((g) + + O2(g) O2(g) → CO2(8) → H2O(l) AH2 = -285.8 kJ/mol (3) 2CH.(g) + 702(g) → 4 CO2(g)+ 6H2O(1) AH = -283.0 kJ/mol Calculate the enthalpy change for the reaction: 2 C(s) + 3H2(g) → CzH6(g) AH = kJ/mol
6. Hess's Law. Use the data in Table 1 to calculate AH for the reaction below: Table 1. Change in Enthalpy for Reactions Reactions Change in Enthalpy (AH) AH = -393.5 kJ/mol (1) C() (2) Hz((g) + + O2(g) O2(g) → CO2(8) → H2O(l) AH2 = -285.8 kJ/mol (3) 2CH.(g) + 702(g) → 4 CO2(g)+ 6H2O(1) AH = -283.0 kJ/mol Calculate the enthalpy change for the reaction: 2 C(s) + 3H2(g) → CzH6(g) AH = kJ/mol
6. Calculate AH Reaction for the Reaction: N2H4 + 2N2O5 + 2HNO3 + 2NO2 + 2 NH Using the following equations: H2 + 2N2 + 5022HNO3 + 2NO2 N2H4 + 2NH + H2 2N205 2N2 + 502 AH = -202 kJ AH = +567 kJ AH = +22.6 kJ 7. Calculate the AHReaction for the reaction 2H2(g) + CO(g) → CH3OH(1) Using the following equations: CH3OH() + O2(g) → C(s) + 2H2O() C(s) + 02 (9) — CO(g) H2(g) +...
5. Calculate the enthalpy of formation of carbon dioxide in the following reaction: C(s) + O2(g) - CO. (g) 213 Use the following equations: 2) H.O (0) -- H() .O() AH: 285.8 kJ/mol b) CH. (g) -- 2C). 3H2(g) AH: +84.7 kJ/mol c) 200,(e) +3H.0 (6-- C.H. (B). (7/2)0,() AH - 1560.7 kJ/mol
Question 4 of 4 > The enthalpy changes, AH, for three reactions are given. H, ()0,()H,O) Ca(s) +2H (aq) Ca2 (aq) +H,(g) CaO(s) +2H (aq) - AH=-286 kJ/mol AH= -544 kJ/mol Ca2 (aq) +H,O() AH =-193 kJ/mol Using Hess's law, calculate the heat of formation for CaO(s) using the reaction shown. 0,()Ca) Ca(s) + kJ/mol ΔΗ- TOOLS During an experiment, a student adds 1.81 g CaO to 300.0 mL of 1.000 M HCI. The student observès a temperature increase of...
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