Homework Answers
Enthalpy of formation of any naturally occurring molecules or material in elemental form is always zero. Nitrogen is a naturally occurring diatomic molecule. So , enthalpy of formation of N2 is zero.
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QUESTION 8 0 kJ/mol? Which of the following has a AH° Fe2+(aq) ON2(g) CS20 H2O() NO(g)
What is AH°rxn for the following reaction? H3AsO4(aq) + 4H2(g) → AsH3(g) + 4H2O(1) Substance AH°f(kJ/mol)...
What is AH°rxn for the following reaction? H3AsO4(aq) + 4H2(g) → AsH3(g) + 4H2O(1) Substance AH°f(kJ/mol) 171.5 AsH3(8) H3ASO4(aq) H2O(1) -904.6 -285.8 O -790.3 kJ/mol O-1018.9 kJ/mol 0 -410.1 kJ/mol O -67.1 kJ/mol 0 -1876.3 kJ/mol
llicients. (unbalanced] C2H6(8) + O2(8) — CO2(g) + H2O(g) V C2H6()] = -84.667 kJ/mol Ah (CO2())...
llicients. (unbalanced] C2H6(8) + O2(8) — CO2(g) + H2O(g) V C2H6()] = -84.667 kJ/mol Ah (CO2()) = -393.5 kJ/mol AHCO2(aq)] =-412.9 kJ/mol 120(g) = -241.826 kJ/mol AHH,00=-285.840 kJ/mol kJ
Which of the following has a AH 0 kJ/mot? Cl(aq) Oslo) NH3(aq) CO2(g)
Which of the following has a AH 0 kJ/mot? Cl(aq) Oslo) NH3(aq) CO2(g)
Use the values of AH; to calculate AF® for the following reactions. Substance and State AH(kJ/mol)...
Use the values of AH; to calculate AF® for the following reactions. Substance and State AH(kJ/mol) C2H5OH(1) -278 02(9) CO2(9) -393.5 H2O(9) -242 H2O(1) -286 Ticu (9) -736 TiO2(8) _945 H+ (aq) Cl(aq) -167 NiO(s) -241 Ni(OH)2(s) -538 0 + (g) - (g) + он до ос AH = kJ b. TiCl4 (9) + 2H20(1) + TiO2 (s) + 4HCl(aq) AH° = c. NiO(s) + H2O(l) + Ni(OH)2(s) AH° = kJ
(NO(g)) = 20. Determine the enthalpy for the following reaction, given AH (NH3(g)) = -46.1 kJ/mol, AH +90.3 kJ/mol, and...
(NO(g)) = 20. Determine the enthalpy for the following reaction, given AH (NH3(g)) = -46.1 kJ/mol, AH +90.3 kJ/mol, and AH (H2O(g)) = -241.8 kJ/mol. 4NH3(g) + 502(g) → 4NO(g) + 6H2O(g) AH x = ? kJ a. -1274 kJ/mol d. -905.2 kJ/mol b. -1,996 kJ/mol e. -105.4 kJ/mol c. +1,274 kJ/mol
Calculate AH® for the following: rxn CH4(8) + Cl2(g) → CCl4(!) + HCl(g) [unbalanced] -139 kJ/mol...
Calculate AH® for the following: rxn CH4(8) + Cl2(g) → CCl4(!) + HCl(g) [unbalanced] -139 kJ/mol AH (CH4®= -74.87 kJ/mol a CCl4@)) = -96.0 kJ/mol AHCC140] =-139 kJ/mol AH [HCI@)) =-92.31 kJ/mol AH [HCl(aq)] =-167.46 kJ/mol Ahº [C1()] = 121.0 kJ/mol
Given the following standard enthalpy of formations: AH [C,H,OH() --277.7 kJ/mol; AH(CH3CO,H() = -484.5 kJ/mol); AH...
Given the following standard enthalpy of formations: AH [C,H,OH() --277.7 kJ/mol; AH(CH3CO,H() = -484.5 kJ/mol); AH® [H2O(1) --285.8 kJ/mol]; AH [O2(g) - 0 kJ/mol). Calculate the AHan for the reaction. C,H,OH(I)+,(g) → CH,CO,H(1) + H2O(l)
Consider the following reaction. CH,(8) + 30,(8) 200,(g) + 2 H2O(g) Compound C, H.() 0,(g) CO2(g)...
Consider the following reaction. CH,(8) + 30,(8) 200,(g) + 2 H2O(g) Compound C, H.() 0,(g) CO2(g) H2O(g) AH; (kJ/mol) 52.4 0 -393.5 -241.8 What is the AH of the reaction? -687.7 kJ/mol -1323.0 kJ/mol -1218.2 kJ/mol 1323.0 kJ/mol
1(3pts) Use the following data to determine the AH of > 8 CO (g) +5 H2O(I)...
1(3pts) Use the following data to determine the AH of > 8 CO (g) +5 H2O(I) 2 C.Hidg)+13 0:(g) AH (KJ/mol) Substance AH(kJ/mol) Substance Data: С-Н. () CH OH(g) C.Hi2(g) С.Н.0 Н.о0 со, N2(g) -104.0 -201.0 -146.44 +12.0 -285.83 С-Н.В) CH,OH() С.Н.о(8) C&Hi2(() H.O(g) CO(g) O:(g) 20.9 -239.0 -126.15 -156.4 -241.82 -393.51 -110.53
Answer all please! Which of the following has a AH-0kJ/mol? A) NO(g) C) Fe (aq) D)...
Answer all please!
Which of the following has a AH-0kJ/mol? A) NO(g) C) Fe (aq) D) H20( E) N (R) 23. Find the standard enthalpy of formation of ethy lene, Call4(g), given the following data: beat of combustion of CaH(g)--1411 J/mol, AHCO )-393.3 Jmol AH TH OD)]-285.8 kJ/mol. A) 52 kJ/mo B) 87 kJ/mol C) 731 kJ/mol D) 1.41 x 103 kUmol E) 2.77 x 10 kJ/mol 24. During volcanic eruptions, hydrogen sulfide gas is given off and oxidized by...
What is AH°rxn for the following reaction? H3AsO4(aq) + 4H2(g) → AsH3(g) + 4H2O(1) Substance AH°f(kJ/mol) 171.5 AsH3(8) H3ASO4(aq) H2O(1) -904.6 -285.8 O -790.3 kJ/mol O-1018.9 kJ/mol 0 -410.1 kJ/mol O -67.1 kJ/mol 0 -1876.3 kJ/mol
llicients. (unbalanced] C2H6(8) + O2(8) — CO2(g) + H2O(g) V C2H6()] = -84.667 kJ/mol Ah (CO2()) = -393.5 kJ/mol AHCO2(aq)] =-412.9 kJ/mol 120(g) = -241.826 kJ/mol AHH,00=-285.840 kJ/mol kJ
Which of the following has a AH 0 kJ/mot? Cl(aq) Oslo) NH3(aq) CO2(g)
Use the values of AH; to calculate AF® for the following reactions. Substance and State AH(kJ/mol) C2H5OH(1) -278 02(9) CO2(9) -393.5 H2O(9) -242 H2O(1) -286 Ticu (9) -736 TiO2(8) _945 H+ (aq) Cl(aq) -167 NiO(s) -241 Ni(OH)2(s) -538 0 + (g) - (g) + он до ос AH = kJ b. TiCl4 (9) + 2H20(1) + TiO2 (s) + 4HCl(aq) AH° = c. NiO(s) + H2O(l) + Ni(OH)2(s) AH° = kJ
(NO(g)) = 20. Determine the enthalpy for the following reaction, given AH (NH3(g)) = -46.1 kJ/mol, AH +90.3 kJ/mol, and AH (H2O(g)) = -241.8 kJ/mol. 4NH3(g) + 502(g) → 4NO(g) + 6H2O(g) AH x = ? kJ a. -1274 kJ/mol d. -905.2 kJ/mol b. -1,996 kJ/mol e. -105.4 kJ/mol c. +1,274 kJ/mol
Calculate AH® for the following: rxn CH4(8) + Cl2(g) → CCl4(!) + HCl(g) [unbalanced] -139 kJ/mol AH (CH4®= -74.87 kJ/mol a CCl4@)) = -96.0 kJ/mol AHCC140] =-139 kJ/mol AH [HCI@)) =-92.31 kJ/mol AH [HCl(aq)] =-167.46 kJ/mol Ahº [C1()] = 121.0 kJ/mol
Given the following standard enthalpy of formations: AH [C,H,OH() --277.7 kJ/mol; AH(CH3CO,H() = -484.5 kJ/mol); AH® [H2O(1) --285.8 kJ/mol]; AH [O2(g) - 0 kJ/mol). Calculate the AHan for the reaction. C,H,OH(I)+,(g) → CH,CO,H(1) + H2O(l)
Consider the following reaction. CH,(8) + 30,(8) 200,(g) + 2 H2O(g) Compound C, H.() 0,(g) CO2(g) H2O(g) AH; (kJ/mol) 52.4 0 -393.5 -241.8 What is the AH of the reaction? -687.7 kJ/mol -1323.0 kJ/mol -1218.2 kJ/mol 1323.0 kJ/mol
1(3pts) Use the following data to determine the AH of > 8 CO (g) +5 H2O(I) 2 C.Hidg)+13 0:(g) AH (KJ/mol) Substance AH(kJ/mol) Substance Data: С-Н. () CH OH(g) C.Hi2(g) С.Н.0 Н.о0 со, N2(g) -104.0 -201.0 -146.44 +12.0 -285.83 С-Н.В) CH,OH() С.Н.о(8) C&Hi2(() H.O(g) CO(g) O:(g) 20.9 -239.0 -126.15 -156.4 -241.82 -393.51 -110.53
Answer all please!
Which of the following has a AH-0kJ/mol? A) NO(g) C) Fe (aq) D) H20( E) N (R) 23. Find the standard enthalpy of formation of ethy lene, Call4(g), given the following data: beat of combustion of CaH(g)--1411 J/mol, AHCO )-393.3 Jmol AH TH OD)]-285.8 kJ/mol. A) 52 kJ/mo B) 87 kJ/mol C) 731 kJ/mol D) 1.41 x 103 kUmol E) 2.77 x 10 kJ/mol 24. During volcanic eruptions, hydrogen sulfide gas is given off and oxidized by...
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