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The molar masses and empirical formulas of several

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro ISBN: 9780321910295 34

Solution for problem 102P Chapter 6

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

Introductory Chemistry | 5th Edition

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Problem 102P

The molar masses and empirical formulas of several compounds containing carbon and nitrogen are listed here. Find the molecular formula of each compound.

(a) 163.26 g/mol, C11H17N

(b) 186.24 g/mol, C6H7N

(c) 312.29 g/mol, C3H2N

Step-by-Step Solution:

Solution 102P

Step 1:

Here, the molar masses and empirical formulas of compounds are listed here. We have to find the molecular formula of each compound :

First, let’s see what is an empirical formula and molecular formula and then we see the steps to determine the molecular formula from the given data.

Empirical formula of a chemical compound is the simplest positive integer ratio of atoms present in a compound. The smallest whole number ratios of the subscripts of molecular formula are derived by dividing the subscripts by largest common factor.

For example:

 the empirical formula of disulfur dioxide is S2O2.

the empirical formula of ethane(C2H6) will be CH3.

Molecular formula is a chemical formula that gives the total number of atoms of each element in each molecule of a substance.  These definite numbers of atoms present in a molecule are represented as subscripts in the molecular formula.

For Example : C2H6 is the molecular formula of ethane. 1 molecule of ethane contains 2 atoms of Carbon and 6 hydrogen (H) atoms.

Steps to determine molecular formula from the empirical formula and molar mass of molecular formula :

1. We are given the molar mass of the molecular formula. So we First, we determine the molar mass for the given empirical formula.

2. We divide the molar mass of the molecular formula by the molar mass of the empirical formula and the result we get, we multiply that with the superscripts of the empirical formula and arrive at the molecular formula.

Step 2 of 2

Chapter 6, Problem 102P is Solved
Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

Since the solution to 102P from 6 chapter was answered, more than 2588 students have viewed the full step-by-step answer. This full solution covers the following key subjects: mol, here, compounds, containing, empirical. This expansive textbook survival guide covers 19 chapters, and 2045 solutions. The full step-by-step solution to problem: 102P from chapter: 6 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295. The answer to “The molar masses and empirical formulas of several compounds containing carbon and nitrogen are listed here. Find the molecular formula of each compound.(a) 163.26 g/mol, C11H17N(b) 186.24 g/mol, C6H7N(c) 312.29 g/mol, C3H2N” is broken down into a number of easy to follow steps, and 32 words.

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