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Interpretation:
The number of
isotopes at the beginning and at the end of
days is to be calculated.
Concept Introduction:
Radium is radioactive because although it is a noble gas, its mass is so large that its nucleus is unstable and emits radiation when it decays.
According to the quantum theory, it is impossible to determine when or how an atom will decay as it is a random process of energy emission.
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Answer to Problem 78AP
Solution:
Explanation of Solution
Given information: The partial pressure of
is
Dimensions of the basement are
First, calculate the number of
The volume of basement is calculated as follows:
The number of moles of air is calculated as follows:
The number of moles of radon is calculated as follows:
The number of
atoms at the beginning is calculated as follows:
The rate constant is calculated as follows:
Consider the number of radon atoms after time
From the equation of first order kinetics, the value of
The numbers of
isotopes at the beginning and at the end of
days are
and
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Chapter 21 Solutions
Chemistry
- Don't used hand raiting and don't used Ai solution and correct answerarrow_forwardH R Part: 1/2 :CI: is a/an electrophile Part 2 of 2 Draw the skeletal structure of the product(s) for the Lewis acid-base reaction. Include lone pairs and formal charges (if applicable) on the structures. 4-7: H ö- H Skip Part Check X :C1: $ % L Fi Click and drag to start drawing a structure. MacBook Pro & ㅁ x G 0: P Add or increase positive formal cha Save For Later Submit ©2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Centearrow_forwardDraw the friedel-crafts acylation mechanism of m-Xylenearrow_forward
- Don't used hand raiting and don't used Ai solutionarrow_forward1. Base on this experimental results, how do you know that the product which you are turning in is methyl 3-nitrobenzoate(meta substituted product ) rather than either of the other two products? 2. What observation suggests that at least a small amount of one or both of the other two isomers are in the mother liquor?arrow_forwardExplain Huckel's rule.arrow_forward
- here is my question can u help me please!arrow_forwardSo I need help with understanding how to solve these types of problems. I'm very confused on how to do them and what it is exactly, bonds and so forth that I'm drawing. Can you please help me with this and thank you very much!arrow_forwardSo I need help with this problem, can you help me please and thank you!arrow_forward
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