Enter your answer in the provided box.Compounds of boron and hydrogen are remarkable for their unusual bonding and also for theirreactivity. With the more reactive halogens, for example, diborane (B,H) forms trihalides even atlow temperatures:B,H6(g) + 6 Cl,(g)→ 2 BCI,(g) + 6 HCI(g)AH =-755.4 kJrxnHow much heat is released when 7.329 kg of diborane reacts? (Give your answer in scientificnotation.)x 10kJ Be sure to answer all parts.Liquid hydrogen peroxide, an oxidizing agent in many rocket fuel mixtures, releases oxygen gas ondecomposition:2 H,0,() → 2 H,0(1) + 0,(g)=-196.1 kJCalculate the heat for the decomposition of 739 kg of H,O2.x 10kJ(Enter your answer in scientific notation.)Enter your answer in the provided box.A serving of Grape-Nuts cereal (7.64 g) is burned in a bomb calorimeter with a heat capacity of 48.06kJ/°C. During the combustion, the temperature of the water in the calorimeter increased by 2.15°C.Calculate the energy content (in kJ/g) of Grape-Nuts.energy content per gram =kJ/g

Answered: Image /qna-images/answer/8e489178-b179-41f4-8739-d203ca4afa6e.jpg

Enter your answer in the provided box. Compounds of boron and hydrogen are remarkable for their unusual bonding and also for their reactivity. With the more reactive halogens, for example, diborane (B,H6) forms trihalides even at low temperatures: B,H(g) + 6 Cl,(g) 2 BCI,(g) + 6 HCI(g) AH =-755.4 kJ rxn How much heat is released when 7.329 kg of diborane reacts? (Give your answer in scientific notation.) x 10 kJ

Enter your answer in the provided box. Compounds of boron and hydrogen are remarkable for their unusual bonding and also for their reactivity. With the more reactive halogens, for example, diborane (B,H6) forms trihalides even at low temperatures: B,H(g) + 6 Cl,(g) 2 BCI,(g) + 6 HCI(g) AH =-755.4 kJ rxn How much heat is released when 7.329 kg of diborane reacts? (Give your answer in scientific notation.) x 10 kJ

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...

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Concept explainers

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.

Question

Enter your answer in the provided box.
Compounds of boron and hydrogen are remarkable for their unusual bonding and also for their
reactivity. With the more reactive halogens, for example, diborane (B,H) forms trihalides even at
low temperatures:
B,H6(g) + 6 Cl,(g)→ 2 BCI,(g) + 6 HCI(g)
AH =-755.4 kJ
rxn
How much heat is released when 7.329 kg of diborane reacts? (Give your answer in scientific
notation.)
x 10
kJ

Be sure to answer all parts.
Liquid hydrogen peroxide, an oxidizing agent in many rocket fuel mixtures, releases oxygen gas on
decomposition:
2 H,0,() → 2 H,0(1) + 0,(g)
=-196.1 kJ
Calculate the heat for the decomposition of 739 kg of H,O2.
x 10
kJ
(Enter your answer in scientific notation.)
Enter your answer in the provided box.
A serving of Grape-Nuts cereal (7.64 g) is burned in a bomb calorimeter with a heat capacity of 48.06
kJ/°C. During the combustion, the temperature of the water in the calorimeter increased by 2.15°C.
Calculate the energy content (in kJ/g) of Grape-Nuts.
energy content per gram =
kJ/g

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