Pentaborane B5H9(s) burns vigorously in 02 to give B203(s) and H20(). Calculate AHpxnAH(B203(s)]=-1.273.5 kJ/molAH{B5H9(s)] = 73.2 kJ/molAH{H20()) = -285.8 kJ/molfor the combustion of 5.00 mol of BgHg.Multiple Choice9,090 kJ- 22,700 kJ1.45,400 kJ- 8,790 kJ-45,400 kJNext>LEGO

Answered: Image /qna-images/answer/2dac8034-8f38-4860-a24e-94c2927f30f5.jpg

Pentaborane B5H9(s) burns vigorously in 02 to give B203(s) and H200). Calculate AHpxn for the combustion of 5.00 mol of BgHg. AH(B203(s)] =-1.273.5 kJ/mol AH{B5H9(s)] = 73.2 kJ/mol AH{(H20()] = -285.8 kJ/mol Multiple Choice -9,090 kJ - 22,700 kJ 1. 45,400 kJ - 8,790 kJ 45,400 kJ Next> LEGO

Pentaborane B5H9(s) burns vigorously in 02 to give B203(s) and H200). Calculate AHpxn for the combustion of 5.00 mol of BgHg. AH(B203(s)] =-1.273.5 kJ/mol AH{B5H9(s)] = 73.2 kJ/mol AH{(H20()] = -285.8 kJ/mol Multiple Choice -9,090 kJ - 22,700 kJ 1. 45,400 kJ - 8,790 kJ 45,400 kJ Next> LEGO

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: 4. If the heat of formation of sodium chloride is -411 kJ/mol, then the heat of reaction for 0.750…

A: heat of formation of sodium chloride is -411kj/mol which means, for formation of 1 mole of Nacl,…

Q: CO9) AHƒ° = -393.5 kJ/mol H,O) AH;° = -285.8 kJ/mol • C,H10(0) AH;° = -124.7 kJ/mol Which of the…

A: The reaction given is, => 2 C4H10 (g) + 13 O2 (g) ---------> 8 CO2 (g) + 10 H2O (g)

Q: Given the following heat of formation values, Calculate the heat of reaction for C,Hs() + Oz9)…

A: Given, the chemical reaction,C3H8(s)+O2(g)→CO2(g)+H2O(l)the heat of formation values in kJmol for…

Q: Prove that the specific energy of Octane (Cglf16) is-37.9 MJ/kg

A: 4.ANS; We need to find Heat of Combustion of octane ? we find heat of combustion of octane. So,…

Q: 1. Calculate the heat of combustion of the following reactions (show the computation). Use the…

A: The enthalpy of combustion can be defined as the amount of energy released when 1 mole of a…

Q: Given the following heat of formation values, calculate the heat of reaction for the following:…

A: In this problem we are required to calculate the heat of the combustion of propane, given that the…

Q: Calculate AH°298, AS 298, and AG 298 for the combustion of 1 mole of nonane, C9H₂0 (MW 128.2 g/mol).…

A: Although in question nonane is asked, but the data provided for octane.

Q: Question: Calculate the enthalpy of the combustion reaction, AH'R, to one decimal point.

Q: Write the heat of formation reactions for the following: C₂H6O (1) C47H51NO14 (s) (taxol)…

A: The question is based on the concept of chemical thermodynamics. we need to write reaction of…

Q: What is the molar energy of combustion (in kJ/mol) of benzoic acid and How much energy (in KJ) is…

A: According to the reaction, The Mass of benzoic acid is given by = 1.350 g The Molar mass of…

Q: Calculate the AH for the reaction below based on the following enthalpy values: C3H8 (g) +502 (g)…

A: The standard enthalpy of formation is the enthalpy change of reaction in standard conditions when…

Q: 12. Under a particular set of conditions, this reaction takes place. XeF. (g) about (a) Estimate the…

A: The enthalpy of a reaction mainly depends on the old bonds that are broken during the reaction and…

Q: 0 Calculate AH for the following reaction, after it is properly balanced with smallest whole-number…

Q: Given the heats of formation DHfo(CO2(g)) = -393.5 kJ/mol, DHfo(H2O(l)) = -285.9 kJ/mol…

Q: For a particular isomer of CH18, the combustion reaction produces 5113.3 kJ of heat per mole of…

A: DeltaH•f O2 = 0 KJ/mol , deltaH•f CO2(g) = -393.5KJ/mol , deltaH•f H2O (g)= -241.82 KJ/mol

Q: Given the following data: 4C(s) + 3H2(g) + 1/2O2(g) → HCOC(CH2)(CH3)(l) ΔH°=-139.0 kJ…

Q: 2. Calculate the AH for the reaction: CS2 (1) + 2 02 (g) CO2 (g) + 2 SO2 (g) Given: AHCO2 (g) = -…

A: Enthalpy change is the difference between the enthalpies of products and the enthalpies of reactants…

Q: What is the heat, q, when 25.0 g of acetonitrile, CH3CN, reacts completely with an excess of water?…

A: Using molar mass of CH3CN and from given data we can find heat (q).

Q: 2. 2C3H180) + 250%– 16CO1e+ 18H;Om.Calculate the heat of combustion of octane using the supplied…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: thank you for your time! :)

A: Given,The standard enthalpies of formation:△H°f [NaNO3(s)] = -467.8 kJ/mol△H°f [NaHSO4(s)] = -1125.5…

Q: Calculate the AH°, for the combustion of ethene using the given AH°,: C2 H4 (g) + 302 (g) 2H;0 (1) +…

Q: If AH°, of H,0L is -285.8 KJ/mol and AH° of H,O the AH°, of evaporation of H,O in ( KJ/mol) iİs : is…

A: Since you have posted multiple unrelated questions, we are entitled to answer the first only. Given:…

Q: Pls help on both questions.

A: The above questions can be answered as follows

Q: How much heat (in kilojoules) is evolved or absorbed in the reaction of 1.65 gg of NaNa with H2OH2O?…

A: The negative value of ∆H° indicates that the heat is released and the positive value of ∆H°…

Q: Prove that the specific energy of Octa 27.9 MI/ ka

Q: q = cAT = msAT = ms(Ténal – Tinia) AHΧΣn, ΧΑ(prod)] - Σn, ΧΔΗ (react)] 1. The enthalpy of which of…

A: Enthalpy of formation is the heat in formation of product from its constituent elements.

Q: 12. What is the enthalpy of reaction for 1/3 H2 (8) + 1/6 O2 () - 1/3 H20 (g) If 2 H2 (e) + O2 (2) →…

Q: [Review Topics] [References] One cubic meter of methane hydrate has 164 m of CH, (at STP). If you…

Q: Given the data below, H°, for the reaction rxn 2SO2 (g) + O2 (g) → 2SO3 (g) is kJ. AH°; (SO2 (g)) =…

A: O2(g) is pure gas at room temperature so it's ∆H°formation is Zero. So we not need value of O2

Q: Pentaborane BsHg(s) burns vigorously in 02 to give B203(s) and H20(). Calculate AHxn for the…

Q: Consider the problem below: (Equation 1) H2(g) + 1/2 O2(g) ---> H2OU) AH = -285.8 kJ/mol (Equation…

A: The enthalpy change is a state function and the Hess law states that the change of enthalpy in a…

Q: The heat of combustion of 1-pentanol is -3331 kJ/mol. Given the following information, calculate the…

Q: 3) A 0.133 gram sample of C₁₂H₂O₁, is burned in a bomb calorimeter with C=256.4 J. temperature of…

Q: 6. Calculate the formation enthalpy (4H orm) for benzene (CSH6). Is this reaction endothermic or…

Q: Calculate AH°298, AS 298, and AG 298 for the combustion of 1 mole of nonane, C9H20 (MW 128.2 g/mol).…

Q: Determine AH for the combustion of 25.0 mL of C12H26(U) in excess O2 to give CO2(g) and H20(g). The…

A: The heat of combustion (∆HC) is also known as the enthalpy of combustion. Therefore, it is defined…

Q: The burning of 50.2 g of SiH 4 (MW= 32.8)at constant pressure gives off 3790 kJ of heat. Calculate A…

A: The reaction in which heat is released is known as exothermic reaction. The negative sign indicates…

Q: A certain hydrocarbon of the molecular formula C,H2, has a standard enthalpy of formation AH =…

A: Complete combustion of alkene produces CO2 and H2O

Q: data for DHof (KJ/mol) provided below, calculate DHoRxn for: N2O(g) + 3H2(g) ---> N2H4 (l) +…

Q: Estimate the enthalpy change for the combustion of one mole of acetylene, C2H2, to formcarbon…

A: The given reaction is combustion of acetylene - 2 C2H2 + 5 O2→ 2 H2O +4 CO2 The change in enthalpy…

Q: Use heats of formation data bellow to calculate AH° for the reaction: Ca(OH)2 (s) + H2S04 ()CaSO4…

A: Standard change in enthalpy of a reaction is equal to the difference in the heat of formation of…

Q: Calculate AH; (kJ/mol) , enthalpy of formation, for the hypothetical CaF(s) given: AHlattice = -895…

A: The formation of CaF can be written as, => Ca (s) + 1/2 F2 (g) ---------> CaF (s)

Q: Note: Please make sure your writing is neat, and I will make sure to give you a thumbs up! Using the…

A: Given the theoretical enthalpy of combustion, ∆Hoc = - 41.5 kJ/g Since the temperature of the water…

Q: Peer Leader: Date: For all problems involving calculations, show your work. Carry the units through…

A: Given: The given unbalanced reaction is: .....C8H18 (g) + .....O2(g) → .....CO2(g) +…

Question

Pentaborane B5H9(s) burns vigorously in 02 to give B203(s) and H20(). Calculate AHpxn
AH(B203(s)]=-1.273.5 kJ/mol
AH{B5H9(s)] = 73.2 kJ/mol
AH{H20()) = -285.8 kJ/mol
for the combustion of 5.00 mol of BgHg.
Multiple Choice
9,090 kJ
- 22,700 kJ
1.
45,400 kJ
- 8,790 kJ
-45,400 kJ
Next>
LEGO

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Solution

VIEW

Answer

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Give good solution asap
1. Consider the BALANCED gas-phase reaction: Note that the full Lewis dot structures are NOT given, only the bond multiplicities. H C=O + 2 H-H CEO 1,079 436 H-H H-C-O-H C-H 414 C-O 351 O-H 460 H Estimate AH (in kJ) for this reaction using the following bond enthalpy data (all bond enthalpies in the above table are in kJ/mol).
Question 8
GUIDE QUESTIONS: 1. Calculate the heat of combustion of the following reactions (show the computation). Use the enthalpy of formation of the substances given below: Substances CO2 (a) H2O ) AH? (k]/mol) -393.5 -285.8 O2 ig) CH3CH2OH -276.98 CH3(CH2)2OH CH3(CH2)»OH -303.3 -332.8 a. combustion of ethanol CH,CH2OH, + 30zig) → 2CO29) + 3H2Om b. combu stion of propanol CH3(CH2)OH, +4.5O2g) 3CO20) + 4H2O) c. combu stion of butanol CH:(CH,),OH + 60zg) - 4COzp) + 5H;O
6. Calculate the formation enthalpy (AHform) for benzene (C,Hs). Is this reaction endothermic or exothermic? 2C,H6 + 150, 12C02 + 6H20 AH° = -6535 kJ AHPorm values: O;: 0 kJ/mol - CO;: -393.5 kJ/mol - H;O: –285.8 kJ/mol MH = 1 g/mol, Mc = 12 g/mol, Mo = 16 g/mol, R = 0.08206 L.atm/mol.K or 8.314 J/mol.K
Calculate the standard heat of formation, AH, of CH3OH (1) from the measured heat of combustion of CH3OH (I) and the other tabulated AH values: AH (CO2 in g) = -394 kJ/mol AH (H2O in )=-286 kJ/mol AH (02 in g), = 0 kJ/mol REACTION: 2CH;OH (1I) + 302 (g) => 2CO2 (g) + 4H2O (1I)
04) (g Calculate the volume of air at 30°C and 1.00 atm that is needed to burn completely 10.0 grams of propane. Assume that air is 21.0 percent O₂ by volume. The heat of combustion of propane is -2,220.1 kJ/molrxn. Calculate the heat of formati of propane given that AHO of H₂0(1) = -285.3 kJ/mol and AHO of CO2(g) = -393.5 kJ/ f AH-[(3•Co₂) + (4•H₂0)]-[C3H8 + 5(0₂)] [ F)+(4(-285.3)]-[AH C3H5] [200
Give answer with explanation and clear please
Calculate AH, (kJ/mol), enthalpy of formation, for the hypothetical CaF(s) given: AHjattice = -795 kJ/mol AHsub(Ca) = +178 kJ/mol AHje1 (Ca) = +590 kJ/mol %3D AHje2 (Ca) = +1250 kJ/mol AH(F2) = +158 kJ/mol AHea(F) = -328 kJ/mol 1053 O -974 O 874 O 974 O 1053
Given the following information, AH° (A2B(g)) = -225 KJ/mol AH (BC(g)) = -160 KJ/mol %3D AH (AC(g)) = -85 KJ/mol AH (B(g)) = -75 KJ/mol Determine AH° for the reaction, A2B(g) + 2BC(g) 2AC(g) + 3B(g) -600 KJ/mol 150 KJ/mol 600 KJ/mol 450 KJ/mol
Question is attached
Sucrose, C12 Hzm011, is common table sugar. The enthalpy change at 25°C and 1 atm for the complete burning of 3 mol of sucrose in oxygen to give CO:(9) and H3O(1) is - 1.692 x 10' kJ. From this and from data given below: AH; (H2O(1)) =-285.8 kJ/mol AH(CO2(9) = -393.5 kJ/mol AH (02(9)) = 0 kJ/mol Calculate the standard enthalpy of formation of sucrose. AH; - k]/mol