Organic Chemistry
Organic Chemistry
11th Edition
ISBN: 9781118133576
Author: T. W. Graham Solomons, Craig Fryhle
Publisher: Wiley, John & Sons, Incorporated
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Chapter 1, Problem 1PP
Interpretation Introduction

Interpretation:

The number of protons and neutrons in the isotopes of nitrogen is to be determined.

Concept introduction:

Isotopes are the two or more atoms that have same number of protons but different number of neutrons.

In the periodic table, atomic number is represented by Z. Atomic number is the number of protons present in the nucleus.

Mass number is the sum of number of neurons and number of protons present in the nucleus of the atom. Mass number is represented by A. Mathematically, mass number is calculated as:

A=n+p …… (1)

Here, A is the atomic mass, n is the number of neutrons, and p is the number of protons.

Expert Solution & Answer
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Answer to Problem 1PP

Solution: 14N:7pand7n

15N:7pand8n

Explanation of Solution

The atomic number (Z) from the symbol for nitrogen is 7 .

The number of protons is same as the atomic number. So, the numbers of protons for both the isotopes of nitrogen are 7.

The total number of protons and neutrons is equal to the atomic mass. Therefore, the number of neutrons is calculated as follows:

A= n+p

Rearrange the above equation:

n= A+p…… (2)

Here, A is the atomic mass of the element.

For 14N, Substitute 14 for A and 7 for number of protons in the above equation as follows:

n=147   =7

For 15N, Substitute 15 for A and 7 for number of protons in the above equation as follows: n=157   =8

Conclusion

For 14N, number of protons is 7, number of neutrons is 7.

For 15N, number of protons is 7, number of neutrons is 8.

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Chapter 1 Solutions

Organic Chemistry

Ch. 1 - Prob. 11PPCh. 1 - Prob. 12PPCh. 1 - Prob. 13PPCh. 1 - Prob. 14PPCh. 1 - Prob. 15PPCh. 1 - Prob. 16PPCh. 1 - Prob. 17PPCh. 1 - Prob. 18PPCh. 1 - Prob. 19PPCh. 1 - Prob. 20PPCh. 1 - Prob. 21PPCh. 1 - Practice Problem 1.22 Which of the following...Ch. 1 - Prob. 23PPCh. 1 - Prob. 24PPCh. 1 - Practice Problem 1.25 What do the bond angles of...Ch. 1 - Prob. 26PPCh. 1 - Practice Problem 1.27 Use VSEPR theory to predict...Ch. 1 - Practice Problem 1.28 Predict the bond angles of...Ch. 1 - 1.29 Which of the following ions possess the...Ch. 1 - 1.30 Write a Lewis structure for each of the...Ch. 1 - Prob. 31PCh. 1 - Add any unshared electrons to give each element an...Ch. 1 - Prob. 33PCh. 1 - What is the molecular formula for each of the...Ch. 1 - Prob. 35PCh. 1 - Prob. 36PCh. 1 - 1.37 Write bond-line formulas for all of the...Ch. 1 - Prob. 38PCh. 1 - Prob. 39PCh. 1 - Prob. 40PCh. 1 - Prob. 41PCh. 1 - (a) Cyanic acid (HOCN) and isocyanic acid (HN=C=O)...Ch. 1 - Consider a chemical species (either a molecule or...Ch. 1 - 1.44 Consider a chemical species like the one in...Ch. 1 - 1.45 Consider another chemical species like the...Ch. 1 - Draw a three-dimensional orbital representation...Ch. 1 - Ozone (O3) is found in the upper atmosphere where...Ch. 1 - Write resonance structures for the azide ion, N3....Ch. 1 - Write structural formulas of the type indicated:...Ch. 1 - Prob. 50PCh. 1 - 1.51 In Chapter 15 we shall learn how the...Ch. 1 - Prob. 52PCh. 1 - (a) Consider a carbon atom in its ground state....Ch. 1 - Open computer molecular models for dimethyl ether,...Ch. 1 - Boron is a group IIIA element. Open the molecular...Ch. 1 - 1.56 There are two contributing resonance...Ch. 1 - Prob. 1LGPCh. 1 - Consider the compound with the following condensed...Ch. 1 - Consider the compound with the following condensed...Ch. 1 - Consider the compound with the following condensed...Ch. 1 - Consider the compound with the following condensed...Ch. 1 - Consider the compound with the following condensed...Ch. 1 - Prob. 7LGPCh. 1 - Prob. 8LGP
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