Pentaborane BgHgls) burns vigorously in O2 to give B203s) and H2O0. Calculate AHren for the combustion of 5.00 mol of BgHg. AH(020ats --1.273.5 kJimol AH'(B5H9(N - 73.2 kmol AHH20N --285 8 kimol Multiple Choice - 8,790 kJ 45.400 kJ -46.400 9,090 kJ

Pentaborane BgHgls) burns vigorously in O2 to give B203s) and H2O0. Calculate AHren for the combustion of 5.00 mol of BgHg. AH(020ats --1.273.5 kJimol AH'(B5H9(N - 73.2 kmol AHH20N --285 8 kimol Multiple Choice - 8,790 kJ 45.400 kJ -46.400 9,090 kJ

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter5: Thermochemistry

Section: Chapter Questions

Problem 52E: Before the introduction of chlorofluorocarbons, sulfur dioxide (enthalpy of vaporization, 6.00...

See similar textbooks

Related questions

Q: Calculate the pH of the following: (a) 500 mL buffer solution which is 1.0 F with respect to nitrou...

Q: A 0.00653 M solution of an unknown weak acid has a pH of 3.510 at 25 °C. what is the Ka of this acid...

Q: Draw the Lewis structure for HNO.

Q: What is the total number of hydrogen atoms on the right-hand side of this chemical equation? 8 Al(s)...

A: Count number of H atom in right hand side ?

Q: Formula Electron group Molecular Bond Polarity (or ion) Lewis structure AXE Notation geometry geomet...

A: Molecular structures: As per our guideline we have to answer first three questions only.

Q: mass percent composition.

Q: In aqueous solution, pentanoic acid (HC-H,02) dissociates to produce its conjugate base, the pentano...

Q: The protein lysozyme unfolds at a transition temperature of 75.5 °C with a standard enthalpy of tran...

Q: A technician tritated a vinegar sample. Data Below: Concentration of NaOH = 0.500 M Final buret re...

A: Given : Concentration of NaOH = 0.500 M Final buret reading = 32.46 mL Initial buret reading = 23.8...

Q: Identify the expected major product of the following electrocyclic reaction. + En + En + En II II IV...

A: -> In presence of ∆ there occur con rotation electrocyclic reaction for 4Pi system.

Q: The disintegration energy of the decay30 P15 by position emission is 4.30 Mev. The daughter nuclide...

A: Given, disintegration energy = 4.30 Mev mass of Si = 29.97396 u Mass of positron, 0e+1 = 0.000548...

Q: Identify if the following compound has R or S chirality. H3C OH Но. O-P- OH None R.

A: Tricks to solve R/S Case 1: least prior on the dash if rotation clockwise then R if rotation is a...

Q: In a mixture of hydrogen (H2) and argon (Ar) gas, 15% of the total gas pressure is exerted by hydrog...

A: The mixture of gas assumed to behave like an ideal gas. The fraction of the gas can be obtained by t...

Q: Among the following ions, which has the SMALLEST radius? Select one: O a. Mg2+ O b. Be2+ Oc. K* O d....

Q: Consider 1,3-cyclopentandiol ОН НО a) Draw a pair of 1,3-cyclopentandiol stereoisomers that have a d...

A: The molecules with the same molecular formula but different structures are known as isomers. If the ...

Q: A solution is prepared by adding 41 mg of sodium acetate (CH3COONA) to 1 L of distilled water. The a...

A: The concentration of CH3COO- is needed to be determined in a solution prepared by dissolving 41 mg o...

Q: What is the average mass, in grams, of one Zn atom? Multiple Choice O 65.39 g 65.39 amu O 109 x 10 2...

A: Given atom - - > Zinc (Zn) Molar mass of Zn atom = 65.38 g/mol Avagadro's number = 6.022*1023

Q: • Part A How long will it take for a 0240-mol sample of radium to decay to 3.00 x 10 AE ? 91.2 days ...

A: Half life of Radium-223 = 11.4 days No = 0.240 mol N = 3 x 10-2 mol

Q: Give the IUPAC name for the compound bellow: Br Br 6-methyl-1,4-dibromobenzene 1,4-dibromo-2-methylb...

Q: 37. (4 points). The following compound was obtained from cells, after supplying them with "C-labeled...

A: Pyruvate is a three-carbon compound that enters the TCA cycle through the pyruvate dehydrogenase rea...

Q: QUESTION THREE Compare an electrochemical cell with an electrolytic cell by completing the following...

A: Comparison of electrochemical cell and electrolytic cell:

Q: Explain why ionic attractions are weaker in media with high dielectric constants, e. g., water and a...

A: Ionic attraction: The magnitude of the electrostatic force F between two point charges q1 and q2 or ...

Q: The rate constant for the first order decomposition of SO2Cl2 is 1.37 ´10-3 min-1 at a certain tempe...

Q: If 2.00x102 mL of 6.0 M nitric acid is diluted with water to a volume of 3.00*102 mL, what is the co...

A: Dilution : the process of addition of solvent to a solution is called dilution In this process no....

Q: How many moles of Ba(OH)2 are present in 275 mL of 0.600 mol L-1 Ba(OH)2? Express your answer numeri...

A: Volume of Ba(OH) 2= 275 ml = 0.275 L Molarity of Ba(OH) 2 = 0.600 mol L —1

Q: 3.56469003 Be sure to answer all parts. The AG" for the reaetion H2(g) + I;(g) = 2HI(g) is 2.60 kJ'm...

Q: A 4.00 L flask at 25 °C is filled with 0.266 moles of X2 and 0.344 moles of Y2 and allowed to react ...

Q: equilibrium concentration at

Q: Gaseous butane (CH3(CH,) CH, will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (...

A: Given data is as follows: The mass of butane = 46 g The mass of oxygen =48.3 g The maximum mass of c...

Q: Draw the Lewis structure of PH3 and then draw its electronic geometry and it’s name

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 886.0 g sample ...

A: The heat (q) absorbed or evolved can be calculated by the mass (m) of the compound, temperature diff...

Q: mole fraction for th

Q: Click in the answer box to activate the palette. Determine the empirical formula of a compound costa...

A: Given Mass of Silicon: 7.86g Mass of chlorine: 39.7g Molar mass of Silicon: 28g Molar mass of chlo...

Q: Classify these compounds as soluble or insoluble. Drag the appropriate items to their respective bin...

A: Solubility depends upon the solubility product.

Q: A tank contains 12 moles of a mixture of neon, krypton, and radon at 300. kPa. If there are two mole...

Q: A 4.0 g sample of bromine is reacted with 0.50 grams of hydrogen to form hydrogen bromide. How many ...

Q: 5. The pOH of a solution, which is 0.5F with respect to a weak monoprotic acid is 9.2. calculate the...

A: Ionization constant of acid = Ka = [Product] / [Reactant] Also, pOH = - log [OH-] pH + pOH = 14 pH =...

Q: 1. List the four variables or factors that can affect the rate of reaction.

A: Solving only first question in accordance with the guidelines. We will discuss factors affecting rat...

Q: 1. ACID/BASE. Supply the missing reactants and products and balance eac equation. All are acid-base ...

A: Balanced reaction are:

Q: 1. Mg HCI MgCl2 H2 + If 4.50 g Mg is made to react with HCl, how many grams of H2 will be theoretica...

Q: 6. Using the phase diagram in Question 5, determine the kilograms of beryllium that must be added to...

Q: Cation Symbol Anion Symbol and charge Compound Formula Name And charge lithium fluoride Li* F LiF so...

A: Cation : Cations are positively charged ion Anion : Anion are negativity charged ion .

Q: Which of the following is a possible set of quantum numbers for an electron in an oxygen atom in its...

A: Oxygen atom is having the atomic number = 8 Hence it contain 8 electrons. So, Ground state electron...

Q: A sample of 4.25 moles of hydrogen at 20.0 C occupies a volume of 25.0 liters. Under what pressure i...

Q: Match Cations and Colors of Precipitate: Colors: Green Gel Blue Gel Brown Gel White Gel Ca...

A: The matching of the following is:

Q: Enter your answer in the provided box. Calculate the average atomic mass of copper. The percentages ...

Q: Given that the value of Kf for water is 1.86°C/m, what is the freezing point of an aqueous solution ...

Q: 8.6 Complete the following equations. aq. HCI Нeat (a) Ph(CN)CH(CN)CO,Et (b) Me,CHNO2+ HCH=0+EtNH,? ...

Q: QUESTION 4 What is the pH of a buffer made by combining 0.98 moles HOBr with 0.67 moles NaOBr in a 1...

A: an acidic buffer consists of HOBr and NaOBr. acid dissociation constant of HOBr, Ka = 2.5×10-9 moles...

Q: item#1c] *refer to the photo below*

A: To find the standard Gibbs free energy change of the reaction in kJ at 298 K and have to tell the r...

Concept explainers

Photochemistry

Photochemistry is the part of chemistry that studies the various mechanisms of reactions that are triggered by the presence of light energy. It also helps to study the changes involved in a molecule that can undergo the absorption of radiation.

Question

Pentaborane BgHgls) burns vigorously in O2 to give B203s) and H2O0. Calculate AHren for the combustion of 5.00 mol of BgHg.
AH(020ats --1.273.5 kJimol
AH'(B5H9(N - 73.2 kmol
AHH20N --285 8 kimol
Multiple Choice
- 8,790 kJ
45.400 kJ
-46.400 kJ
- 9,090 kJ
- 22700 kJ

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 1 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

Provided the following information determine Δ?ΔHformation of C2H6(g). C(graphite) + O2(g) ⟶⟶ CO2(g) Δ?=−393.5??ΔH=−393.5kJ H2(g) + 1212O2(g) ⟶⟶ H2O(l) Δ?=−285.8??ΔH=−285.8kJ C2H6(g) + 7272O2(g) ⟶⟶ 2CO2(g) + 3H2O(l) Δ?=−1560.7??
Calculate the ΔH°f of C6H12O6(s) from the following data: Show the complete and step by step solution ΔH combustion of C6H12O6(s) = -2816kJ/mol ΔH°f of CO2 (g) = -393.5 kJ/mol ΔH°f of H2O (l) = -285.9 kJ/mol Equation: C6H12O6(s) + O2(g) -> CO2(g) + H2O(l)
Calculate the ∆Hof of C6H12O6(s) from the following data: ∆H combustion of C6H12O6(s) = -2816kJ/mol ∆Hof of CO2 (g) = -393.5 kJ/mol ∆Hof of H2O(l) = -285.9 kJ/mol Equation: C6H12O6(s) + O2(g) → CO2(g) + H2O(g)
iven the data in the table below, ΔH°rxn for the reaction C2H5OH (l) + O2 (g) → CH3CO2H (l) + H2O (l) is ________ kJ. -79.0 -1048.0 -476.4 -492.6 The value of ΔH°f of O2 (g) is required for the calculation.
G.192. With explanation..
Calculate the enthalpy change for the reaction C(s) + 2H2 (g)--->CH4(g) from the following data. C(s) + O2 (g) ---> CO2(g). ΔH = – 393.5 kJ/mol H2(g) + 0.5 O2 (g) ---> H2O(l). ΔH = – 285.8 kJ/mol CH4(g) + 2 O2 (g)---> CO2(g) + 2 H2O(l). ΔH = – 890.2 kJ/mol
An English chemistry professor needs a cup of hot tea before grading 50 homeworkassignments but his electric water heater is broken . In his lab, however, he doeshave some ethanol (CH3CH2OH, MW=46.07gmol-1) and 1 gram of benzoic acid(C6H5COOH, MW=122.12 gmol-1). He knows that the benzoic acid has an enthalpyof combustion, H, of -3226.7 kJmol-1. In a constant volume (bomb) calorimeterinitially at 293.15 K, he finds that the combustion of 1.000 g of benzoic acidincreased the temperature to 297.67 K. In the exact same calorimeter, 1.000 g ofethanol raised the temperature from 293.15K to 298.38K.(a) What is the enthalpy of combustion for 1 mole of ethanol? I am confused about this question and I need help.
Before the introduction of chlorofluorocarbons, sulfur dioxide (enthalpy of vaporization, 6.00 kcal/mol) was used in household refrigerators. What mass of SO2 must be evaporated to remove as much heat as evaporation of 1.00 kg of CC12F2 (enthalpy of vaporization is 17.4 kJ/mol)? The vaporization reactions for SO2 and are SO2(l)SO2(g) and CCl2F(l)CCl2F2(g), respectively.
The standard enthalpies of formation of ClO and ClO2 are101 and 102 kJ/mol, respectively., Calculate the overallenthalpy change for each step in the following catalyticcycle: What is the enthalpy change for the overall reaction thatresults from these two steps? ClO(g) + O3(g) ---->ClO2(g) + O2(g) ClO2(g) + O(g) ---->ClO(g) + O2(g)
Determine E, H, G, and S for CH4 at standard pressure and 25°C. σ equals 12 for methane and the atomization energy of CH4 is 1163 kJ/mol.
Given that the average bond energies for C-H and C-Br bonds are 413 and 276 kJ/mol, respectively, the heat of atomization of bromoform (CHBr3) is ________ kJ/mol. 1241 689 -689 1378 -1378
From the following reaction and data, find (a) S° of SOCl₂ and (b) Tat which the reaction becomes nonspontaneous:SO₃(g) +SCl₂(l) → SOCl₂(l) +SO₂(g) ΔG°ᵣₙₓ =-75.2 kJ