Ch.19 - Nuclear ChemistryWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds
Problem

An atom of 49K has a mass of 48.965514 amu. Calculate the binding energy in MeV per NUCLEON. 

the masses:

mass of 1H atom = 1.007825 amu

mass of a neutron = 1.008665 amu

1 amu = 931.5 MeV

Give your answer to 4 significant figures and DO NOT use E notation. No charity points will be awarded.

a. 930.8 MeV
b. 84.23 MeV
c. 0.1756 MeV
d. 8.424 MeV
e. 412.7 MeV

Solution

We’re being asked to calculate the binding energy in MeV per nucleon of an atom of 49K has a mass of 48.965514 amu.


To calculate the binding energy released use the following steps:

Step 1: Calculate the mass of K from its subatomic particles (neutrons and protons).
Step 2: Calculate the mass defect (Δm).
Step 3: Calculate the energy released (E).


Step 1: Calculate the mass of K from its subatomic particles (neutrons and protons) or the theoretical mass.

Given:

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