When 50.0 g of oxygen gas (MW = 32.0) react excess diborane gas (B2H6; MW =D27.6), the enthalpy change is -1120 kJ. What is the enthalpy change for the reaction B2H6lg) + 3 O2lg) → B2O3(s) + 3 H20(1) AH° = ? O-2150 kJ -239 kJ -1120 kJ -717kJ Next ► « Previous

When 50.0 g of oxygen gas (MW = 32.0) react excess diborane gas (B2H6; MW =D27.6), the enthalpy change is -1120 kJ. What is the enthalpy change for the reaction B2H6lg) + 3 O2lg) → B2O3(s) + 3 H20(1) AH° = ? O-2150 kJ -239 kJ -1120 kJ -717kJ Next ► « Previous

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: In the following reaction, what is the quantity of heat (in kJ) released when 4.81 moles of CH are…

Q: When octane (C,H3, density = 0.699 g/mL) undergoes complete 18 combustion, it provides energy…

A: Given that, 2 moles of octane release 10932 kJ of energythe density of octane - 0.699 g/mL = 0.699…

Q: heat

Q: Instant cold packs, often used to ice athletic injuries on the field, contain ammonium nitrate and…

A: It is an application of Principle of calorimetry. Here we are required to find the Enthalpy of…

Q: A quantity of 505 J of heat are added to 11.3 g of water at 28.3 °C. What is the final temperature…

A: According to the answering guidelines, I'm posting the solution for the first question. Kindly post…

Q: The Ksp of PbCl₂ is 7.28 10-11 M. Calculate the solubility of each ion in a saturated solution: M…

Q: Calculate the enthalpy of the reaction 4B(s) + 302(g)→2B,O3(s) given the following pertinent…

A: Hess's law states that regardless of the multiple steps of the reaction, the total enthalpy change…

Q: 5(d)

A: (a) The solution has 100 mL of acid and 100 mL of base. Thus, the total volume of the solution is…

Q: What is the standard enthalpy of reaction for the reaction below? C4H4(g) + 2H2(g) C4H4(g) +502(g)…

A: S.No. Given Reaction Standard enthalpy C4H4(g) + 2 H2(g) ---> C4H8(g) To be determined A…

Q: What is the enthalpy, dH, when 176.1 g NiO reacts with unlimited sulfur dioxide in the following…

A: A numerical problem based on thermochemical reaction, which is to be accomplished.

Q: The enthalpy and entropy of vaporization of ethanol are 38.6 kJ/mol and 109.8 J/mol K, respectively.…

A: Note : i have been asked to solve only question number 9 so i am going to solve only that, if you…

Q: Using N2O4 (g) – 2NO2 (g) AH= + 57.93 kJ; what value of(?Delta)H when 125 grams of N2O4 are…

A: Change in enthalpy of a reaction, when a particular amount of reactant has been consumed, can be…

Q: Determine the enthalpy change for the reaction using the given AH values, 3X (s) + Z₂M3 (g) --> 2Z…

Q: 2NO(g) + Br₂(g) → 2NOBr(g) AH = -293 kJ K₂ = 1.3 x 10-2 When the reaction is altered, as below, what…

A: If the reaction is exothermic reaction then the reverse reaction will be endothermic reaction. The…

Q: Given AH = -90.25 kJ for the reaction below: NO(g) → ½ N2(g) + ½ 02(g), calculate AH for the…

Q: 2. The hydrogenation of coal is a method of producing methane by the following reaction: Ca + 2H2@)…

Q: 1) Use the standard reaction enthalpies given below to determine AH'rxn for the following reaction 4…

Q: The enthalpy change for the reaction: H*(aq) + OH(aq) → H₂O (1) AH°rxn =-56 kJ/mol. If 138 mL of…

A: Change in entalpy: Enthalpy change is the standard enthalpy of formation, which has been determined…

Q: → 2 NO(g) ► 2 N2(g) + O2(g) AH = +180.7 kJ NO(g) + O,(g) → 2 NO,(g) AH = -113.1 kJ 2 N;O(g) → 2…

Q: 5) Baking soda decomposes by the following reaction on heating, creating the holes in baked bread.…

A: Only first question is answered according to the policy

Q: Heat of reaction 5. Consider the reaction of combustion of methane: CH4(g) + 2 O2(g) ->> CO2(g)+ 2…

A: The objective of the question is to calculate the amount of heat released during the combustion of…

Q: For the reaction Ca(OH)2(s) + H2SO4(e) → CaSO4(s) + 2H2O(e) AH° = -94.3 kJ/mol %3D How many kJ of…

A: The reaction taking place is given as, Given : Mass of Ca(OH)2 taken = 39.32 g And mass of H2SO4…

Q: 6.48 1 atm and 25°C, diamond changes to graphite so slowly that the enthalpy change of the process…

A: Introduction : We have to calculate enthalpy change for given reaction .

Q: Consider the decomposition of liquid benzene, C6H6 (), to gaseous acetylene, C2H2 (g) C6 H6 (1) →…

A: a) When a chemical reaction is reversed, the sign of enthalpy change of reaction also get reversed…

Q: Ipy of the reaction: N2 (g) + O2 (g) → 2NO (g), given the following reaction N2 (g) + 202 (g) → 2NO2…

A: Given : We have to calculate the enthalpy of given reaction.

Q: Sulfur dioxide, SO2(g), can react with oxygen to produce sulfur trioxide, SO3(g), by the reaction…

A: Given data:Volume of gas = 4.10 LPressure of gas = 1 barTemperature = 25o CFormula used:

Q: I. Give the thermochemical data below, find the change in enthalpy for the following reactions: NO…

A: ∆H of a reaction is the amount of heat released in the reaction.

Q: Calculate the enthalpy change for the reaction. P4O6(a) +202(g) → P4010(*) given the following…

Q: Calculate AH for the reaction: NO (g) + O (g) → NO2 (g) AH. = ? From given the following…

Q: tion with whole-number coefficients. What is AH for the reaction represented by this equatio mol. pe…

A: A) As the reaction is reversed, the enthalpy of reaction is inversed(sign changed) □H = 72.5 kJ

Q: What is the standard enthalpy change for the combustion of gaseous propylene, C3H6? C3H6(g) + 9/2…

A: We need to find the enthalpy change for the reaction. ∆Hf C3H6 = 20.4 kJ/mol ∆Hf CO2 = -393.5…

Q: How many kII i

Q: Using the equations 2 Sr(s) + O₂(g) → 2 SrO (s) AH° = -1184 kJ/mol CO₂ (g) → C (s) + O₂ (g) AH = 394…

A: Since,According to Hess's law change of enthalpy in a chemical reaction is same regardless of…

Q: Consider the decomposition of liquid water, H₂O(1): (a) What is the enthalpy change for the reverse…

A: Given reaction of the decomposition of liquid water is H2O (l) <=======> H2(g) + 1/2 O2(g)…

Q: Is the reaction exothermic or endothermic will any he be released or absorbed. If you said heat will…

A: Given:Mass of CH4 = 87.8 g.Chemical reaction:

Q: Based on the following reactions: Rxn A: C{s) + O2(g) → CO2 (g) AHc = -393.5 kJ/mole Rxn B: C8H18()…

A: When one mole of a substance is completely burnt in the presence of oxygen (with all of the…

Q: How much did our sodium-in-water demonstration raise the temperature of water in the dessicator jar?…

A: The objective of the question is to calculate the change in energy, in joules, when the reaction of…

Q: What is the standard enthalpy ?change for the following reaction N2H4(1) + 2NO2(g) → 2N20(g) +…

A: The solution is as follows:

Q: A 222.5 mg sample of sucrose (C12H2½O11) is combusted in a bomb calorimeter. The temperature of the…

A: Mass of C12H22O11 =222.5 mg=0.2225 g Temperature change = 21.94-21.20=0.74 °C Heat capacity of…

Q: b My Questions | bartleby 101 Chem101 app.101edu.co Submit Question 11 of 29 In the following…

A: The burning of methane in oxygen occurs as,CH4(g) + 2O2 → CO2(g) + 2H2O(g)The enthalpy change of the…

Q: Use Hess's Law and the given data to calculate AH for the reaction: N.O(g) + NO:(g) 3NO(g) N2(g) +…

A: Given,

Q: A 222.5 mg sample of sucrose (C12H2O11) is combusted in a bomb calorimeter. The temperature of the…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: What is the change in the enthalpy (in kJ) for the complete combustion of 39.0 g of fructose,…

A: Heat of reaction or enthalpy change∆Hrxn is defined as heat released and absorbed during a reaction.…

Q: Dwayne Dimethyl ether, a useful organic solvent, is prepared in two steps. In the first step, carbon…

A: Multiplying first equation by 2, we have : 2CO2(g) + 6H2(g) = 2MeOH(l) + 2H2O(l) ∆H = -262 kJ…

Q: Acetone (C₂H&O) is a liquid with a fruity smell, used for removing paint and nail polish. It is…

Q: When chemical A and chemical B are mixed together, and endothermic reaction below occurs: 4A(aq) +…

A: Thus, Moles of C is produced: 0.0255 mol

Question

When 50.0 g of oxygen gas (MW = 32.0) react excess diborane gas (B2H6; MW
=D27.6), the enthalpy change is -1120 kJ. What is the enthalpy change for the
reaction
B2H6lg) + 3 O2lg) →
B2O3(s) + 3 H20(1)
AH° = ?
O-2150 kJ
-239 kJ
-1120 kJ
-717kJ
Next ►
« Previous

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

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

Consider these reactions: Reaction 1: H2(g) + Cl2(g) 2HCI(g) AH = -184.6 kJ Reaction 2: 20F2(g)- O2(g) + 2 F2(g) AH = -49.4 kJ Reaction 3: N2(g) + 202(g) 2NO2(g) AH = +66.4 kJ Reaction 2 can be described as an [Select] [ Select ] reaction
*You may need your knowledge in balancing equations which you had learned in your Chem. 1 1. Calculate AH for the reaction from the given thermochemical equations. Tell whether the reaction is exothermic or endothermic C:H« (9) + Ha(g) CaHo(g) CO-(g) CO2(g) H;O(1) H20() H20() AH = -1411 kJ * CHalg) * CaHelg) + O2(g) * Hz(g) + Oz(g) O2(9) AH = -1569 kJ + AH = -285.8 kJ
2. (a) 36 mL of 1.0M hydrochloric acid is react with a solution of sodium hydroxide of the concentration 1.6M and volume 15 mL in a coffee cup calorimeter. It is noted that the temperature of both solutions before the reaction is 27.5 °C. After the reaction, the temperature of the solution raise to 35.0 °C. Calculate heat of neutralization for the reaction.(cw = 4.18 Jgl°C', Density of solution: 1gmL').
Consider the following reaction. CH3OH(g) CO(g) + 2 H2(g) H = +90.7 kJ (a) Is the reaction exothermic or endothermic? endothermicexothermic (b) Calculate the amount of heat transferred when 40.0 g of CH3OH(g) are decomposed by this reaction at constant pressure.H = kJ(c) If the enthalpy change is 11.0 kJ, how many grams of hydrogen gas are produced? g(d) How many kilojoules of heat are released when 13.5 g of CO(g) reacts completely with H2(g) to form CH3OH(g) at constant pressure?H = kJ(e) Calculate E when 360.0 g of CH3OH(g) completely reacts at a constant temperature of 300 K and constant pressure of 0.95 atm. R = 8.314 J/mol*K and R = 0.08206 atm*L/mol*K kJ HopHelpCh5N1
The overall reaction in a commercial heat pack can be repre- sented as 4Fe(s) + 30₂(g) 2Fe₂O3(s) AH = -1652 kJ d. How much heat is released when 10.0 g Fe and 2.00 g O₂ are reacted?
Given the following reactions Fe2O3 (s) + 3CO (s) → 2Fe (s) + 3CO2 (g) △H = -28.0 kJ 3Fe (s) + 4CO2 (s) → 4CO (g) + Fe3O4 (s) △H = +12.5 kJ the enthalpy of the reaction of Fe2O3 with CO is ____kJ. 3Fe2O3 (s) + CO (g) → CO2 (g) + 2Fe3O4 (s) Group of answer choices 40.5 -59.0 -15.5 +109 -109
What mass of benzene (C6H6, molar mass = 78.11 g/mol) is required to produce 1.5x10^3kJ of heat according to the following reaction? 2 C6H6(I) + 15 O2(g)→ 12 CO2(g) + 6 H2O(g) AH°rxn = -6278 kJ please explain with work
Pleasseeee help
Q 8 please
8
CH3OH(g) CO(g) + 2 H2(g) H = +90.7 kJ (a) Is the reaction exothermic or endothermic? exothermic endothermic (b) Calculate the amount of heat transferred when 45.0 g of CH3OH(g) are decomposed by this reaction at constant pressure.H = ____kJ(c) If the enthalpy change is 18.0 kJ, how many grams of hydrogen gas are produced?____g(d) How many kilojoules of heat are released when 11.5 g of CO(g) reacts completely with H2(g) to form CH3OH(g) at constant pressure?H = ____kJ(e) Calculate E when 750.0 g of CH3OH(g) completely reacts at a constant temperature of 300 K and constant pressure of 0.95 atm. R = 8.314 J/mol*K and R = 0.08206 atm*L/mol*K _____kJ HopHelpCh5N1
How much did our sodium-in-water demonstration raise the temperature of water in the dessicator jar? The reaction we performed was: Na(s) + H2O(l) NaOH(aq) + 1/2H2(g) qreaction = rHo = -184 kJ/mol-rxn Assuming the dessicator jar is well insulated (like our coffee-cup calorimeter), the energy balance is: 0 = qsystem = qreaction + qwater qreaction = -qwater qreaction = -mwater*Cwater*Twater The data from the demonstration was: (a) 1.0 kg water, (b) 22.0oC, (d) Cwater = 4.18 J/g-K, (e) mNa = 0.21 g How many moles of sodium were added to the water (in moles)?