9th Edition
Steven S. Zumdahl
ISBN: 9781133611097




9th Edition
Steven S. Zumdahl
ISBN: 9781133611097
Textbook Problem

Calculate the amount of energy released per gram of hydrogen nuclei reacted for the following reaction. The atomic masses are H 1 1 , 1.00782 u; H 1 2 , 2.01410 u; and an electron, 5.4858 × 10−4 u. (Hint: Think carefully about how to account for the electron mass.)

H 1 1 + H 1 1 H 1 2 + e + 1 0

Interpretation Introduction


The amount of energy released per gram of hydrogen reacted for the given reaction is to be calculated.

Concept introduction:

The sum of masses of the component nucleons and the actual mass of a nucleus is known as the mass defect and it can be used to calculate the nuclear binding energy.


The atomic mass of 11H is 1.0078amu.

The atomic mass of 12His2.01410amu.

The mass of neutron is 1.0087amu.

Number of protons in 12H=1

Number of neutron in 12H=1

The stated reaction is,


The mass defect is calculated by the formula,

  Δm=[Mass of 12Hnucleus+Massofpositron][2×Massof12Hnucleus]Δm=([(Atomicmass of 12HnucleusMassofelectron)+Massofpositron][2(Atomicmassof11H-massofelectron)])

Substitute the value of the atomic mass of 12H, the number of protons; the mass of the 11H proton and that of the neutron in the above equation.


The conversion of amu/nucleus to Kg/nucleus is done as,


Therefore, the conversion of 0.0044amu/nucleus into kg/nucleus is,


Therefore, the mass defect (Δm) of 12H is -7.30×10-31Kg/nucleus_

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

Chemical digestion of all nutrients mainly occurs in which organ? a. mouth b. stomach c. small intestine d. lar...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

What are the features of a healthy high-fat diet?

Understanding Nutrition (MindTap Course List)

Describe two ways an atom can become excited.

Horizons: Exploring the Universe (MindTap Course List)

A gun is a heat engine. In particular, it is an internal combustion piston engine that does not operate in a cy...

Physics for Scientists and Engineers, Technology Update (No access codes included)

Whats a limiting factor? Can you provide an example?

Oceanography: An Invitation To Marine Science, Loose-leaf Versin