Homework Answers
Since the value of formation of 2 moles of Al2O3 is -3351 kJ. So the enthalpy of formation of 4 moles of Al2O3 will be = (-3351 *2)= -6702 kJ
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Show all work and equations please 5. The value, in kJ, of AH for the reaction below is -3351 kJ. Therefore, the...
please show me how to get the correct answers in preperation for my upcoming exam 20.)...
please show me how to get the correct answers in preperation
for my upcoming exam
20.) A 21.) A
20) The value of AH° for the reaction below is -1107 k]: 2Ba (s) +O2 (g)2BaO (s) How many kJ of heat are released when 5.75 g of Ba (s) reacts completely with oxygen to form BaO (s)? A) 23.2 kJ D) 96.3 kJ C) 26.3 kJ E) 46.4 kJ B) 193 kJ 21) The value of AH° for the following...
C Using the heats of formation below, calculate the heat of reaction for the following reaction:...
C Using the heats of formation below, calculate the heat of reaction for the following reaction: CH4(g) + H2O(g) → C2H5OH(E) AH® (kJ/mol) C2H4(g) 52.26 H2O(g) -241.8 C2H5OH(E) -235.1 kJ d Using the heats of formation below, calculate the heat of reaction for the following reaction: Fe2O3(s) + 2Al(s) - A1203(s) + 2Fe(s) AH(kJ/mol) Fe2O3(s) -824.2 Al(s) 0 Al2O3(s) -1676 Fe(s) 0 KJ
AH = -390 kJ AH = -745 kJ 13. Given the following thermochemical equations: IF (g)...
AH = -390 kJ AH = -745 kJ 13. Given the following thermochemical equations: IF (g) + F2 (g) F3 (9) IF (9) + 2 F2 (9) IFs (9) Find the value of AH for the equation below: (6 points) IFs (9) - IF3 (9) + F2 (9) 14. Baking soda (NaHCO3) can be decomposed when heated, as shown: 2 NaHCO3 (s) Na CO2 (s) + CO2(g) + H20 (g) Use heats of formation to determine the value of AH...
O A. -8377.5 kJ Consider the following reaction: 4Al (s) + 302 (g) → 2 Al2O3...
O A. -8377.5 kJ Consider the following reaction: 4Al (s) + 302 (g) → 2 Al2O3 (5) AH° = -3351 kJ O2(g) is present in excess; Al is the limiting reactant. Calculate the value of AH° when 10.00 g of Al(s) are reacted. O B.-837.8 kJ OC. -1239,9 kg OD. -310.3 k) O E. -546.2 kJ
8) For which one of the following reactions is AHⓇxn equal to the heat of formation...
8) For which one of the following reactions is AHⓇxn equal to the heat of formation of the product? A) N2(g) + 3H2(g) + 2NH3 (8) B)(1/2)N2(g) + O2(g) → NO2(g) C) 6C(s) + 6H (g) → C6H6 (1) D) P (8) + 4H (g) + Br(g) - PH4Br (1) E) 12C (g) + 11H2(g) + 110 (g) → C6H22011 (8) (8) - PH4Br (1) A 9) The AE of a system that releases 12.4 J of heat and does...
= - 2633.5 kJ Please show all work! 22. (20) Given the reaction to assemble solid...
= -
2633.5 kJ
Please show all work!
22. (20) Given the reaction to assemble solid CaF2: Ca2+ (g) + 2 F- (g) → CaF2 (s), determine the AHLATTICE for calcium fluoride. (Use the reactions below and the associated enthalpies to solve. MAKE SURE YOU SHOW ALLLLLLL OF YOU WORK FOR FULL CREDIT!!!!!!). Ca (s) → Ca (g) Ca (g) → Cat (g) + le- Cat (g) → Ca2+ (g) + le- F2 (g) → 2 F (g) F(g) +...
Please show all completed work and equations used Questions 6-7 pertain to the chemical reaction shown...
Please show all completed work and equations used
Questions 6-7 pertain to the chemical reaction shown below. 6. The value of AHrxn for the reaction above is -6535 kJ. How many kJ of heat is released in the combustion of 16.0 g of C6H6 (0)? 15 02 () 2 CH6 12 CO2 (g)6 H2O ) C) 6.70 x 102 kJ B) 5.23 x 10 kJ A) 1.34 x 103 kJ E)-6535 kJ D) 6.70 x 102 kJ 7. What is...
Review Problem 6.086 Given the following thermochemical equations, 2Cu + S(s) - Cu2S(s) AH° = -79.5...
Review Problem 6.086 Given the following thermochemical equations, 2Cu + S(s) - Cu2S(s) AH° = -79.5 kJ S(s) + O2(g) → SO2(9) AH = -297 kJ Cu2S(s) + 202(g) → 2CụO(s) + SO2(g) AH° = -527.5 kJ calculate the standard enthalpy of formation (in kilojoules per mole) of Cuo(s). AH°(Cuo(s)) - kJ/mol The number of significant digits is set to 3; the tolerance is +/-2% Show Work is REQUIRED for this question: Open Show Work Review Problem 6.087 Given the...
The value of AH° for the reaction below is -790 kJ. The enthalpy change accompanying the...
The value of AH° for the reaction below is -790 kJ. The enthalpy change accompanying the reaction of 0.95 g of Sis KJ. 25 (s) + 302 (9) ► 2503 (9) Select one: a. 12 b. -12 C.-790 d. 23 .-23
Please show all steps and work. ThanksTodd? < Time's Up! View Solution Using the equations H2...
Please show all steps and work. ThanksTodd?
< Time's Up! View Solution Using the equations H2 (g) + F2 (g) → 2 HF (g) AH° = -79.2 kJ/mol C(s) + 2 F2 (g) → CF4 (g) AH° = 141.3 kJ/mol Determine the enthalpy for the reaction C(s) + 4 HF (g) → CF, (g) + 2 H2 (g). | kJ/mol
please show me how to get the correct answers in preperation
for my upcoming exam
20.) A 21.) A
20) The value of AH° for the reaction below is -1107 k]: 2Ba (s) +O2 (g)2BaO (s) How many kJ of heat are released when 5.75 g of Ba (s) reacts completely with oxygen to form BaO (s)? A) 23.2 kJ D) 96.3 kJ C) 26.3 kJ E) 46.4 kJ B) 193 kJ 21) The value of AH° for the following...
C Using the heats of formation below, calculate the heat of reaction for the following reaction: CH4(g) + H2O(g) → C2H5OH(E) AH® (kJ/mol) C2H4(g) 52.26 H2O(g) -241.8 C2H5OH(E) -235.1 kJ d Using the heats of formation below, calculate the heat of reaction for the following reaction: Fe2O3(s) + 2Al(s) - A1203(s) + 2Fe(s) AH(kJ/mol) Fe2O3(s) -824.2 Al(s) 0 Al2O3(s) -1676 Fe(s) 0 KJ
AH = -390 kJ AH = -745 kJ 13. Given the following thermochemical equations: IF (g) + F2 (g) F3 (9) IF (9) + 2 F2 (9) IFs (9) Find the value of AH for the equation below: (6 points) IFs (9) - IF3 (9) + F2 (9) 14. Baking soda (NaHCO3) can be decomposed when heated, as shown: 2 NaHCO3 (s) Na CO2 (s) + CO2(g) + H20 (g) Use heats of formation to determine the value of AH...
O A. -8377.5 kJ Consider the following reaction: 4Al (s) + 302 (g) → 2 Al2O3 (5) AH° = -3351 kJ O2(g) is present in excess; Al is the limiting reactant. Calculate the value of AH° when 10.00 g of Al(s) are reacted. O B.-837.8 kJ OC. -1239,9 kg OD. -310.3 k) O E. -546.2 kJ
8) For which one of the following reactions is AHⓇxn equal to the heat of formation of the product? A) N2(g) + 3H2(g) + 2NH3 (8) B)(1/2)N2(g) + O2(g) → NO2(g) C) 6C(s) + 6H (g) → C6H6 (1) D) P (8) + 4H (g) + Br(g) - PH4Br (1) E) 12C (g) + 11H2(g) + 110 (g) → C6H22011 (8) (8) - PH4Br (1) A 9) The AE of a system that releases 12.4 J of heat and does...
= -
2633.5 kJ
Please show all work!
22. (20) Given the reaction to assemble solid CaF2: Ca2+ (g) + 2 F- (g) → CaF2 (s), determine the AHLATTICE for calcium fluoride. (Use the reactions below and the associated enthalpies to solve. MAKE SURE YOU SHOW ALLLLLLL OF YOU WORK FOR FULL CREDIT!!!!!!). Ca (s) → Ca (g) Ca (g) → Cat (g) + le- Cat (g) → Ca2+ (g) + le- F2 (g) → 2 F (g) F(g) +...
Please show all completed work and equations used
Questions 6-7 pertain to the chemical reaction shown below. 6. The value of AHrxn for the reaction above is -6535 kJ. How many kJ of heat is released in the combustion of 16.0 g of C6H6 (0)? 15 02 () 2 CH6 12 CO2 (g)6 H2O ) C) 6.70 x 102 kJ B) 5.23 x 10 kJ A) 1.34 x 103 kJ E)-6535 kJ D) 6.70 x 102 kJ 7. What is...
Review Problem 6.086 Given the following thermochemical equations, 2Cu + S(s) - Cu2S(s) AH° = -79.5 kJ S(s) + O2(g) → SO2(9) AH = -297 kJ Cu2S(s) + 202(g) → 2CụO(s) + SO2(g) AH° = -527.5 kJ calculate the standard enthalpy of formation (in kilojoules per mole) of Cuo(s). AH°(Cuo(s)) - kJ/mol The number of significant digits is set to 3; the tolerance is +/-2% Show Work is REQUIRED for this question: Open Show Work Review Problem 6.087 Given the...
The value of AH° for the reaction below is -790 kJ. The enthalpy change accompanying the reaction of 0.95 g of Sis KJ. 25 (s) + 302 (9) ► 2503 (9) Select one: a. 12 b. -12 C.-790 d. 23 .-23
Please show all steps and work. ThanksTodd?
< Time's Up! View Solution Using the equations H2 (g) + F2 (g) → 2 HF (g) AH° = -79.2 kJ/mol C(s) + 2 F2 (g) → CF4 (g) AH° = 141.3 kJ/mol Determine the enthalpy for the reaction C(s) + 4 HF (g) → CF, (g) + 2 H2 (g). | kJ/mol
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