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Chemistry / Introductory Chemistry 5 / Chapter 6 / Problem 79P

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

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Calculate the mass percent composition of nitrogen in each compound.(a) N2O(b) NO(c)

Chapter 6, Problem 79P

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QUESTION:

Calculate the mass percent composition of nitrogen in each compound.

(a) \(\mathrm{N}_{2} \mathrm{O}\)

(b) NO

(c) \(\mathrm{NO}_{2}\)

(d) \(\mathrm{~N}_{2} \mathrm{O}_{5}\)

Questions & Answers

QUESTION:

Calculate the mass percent composition of nitrogen in each compound.

(a) \(\mathrm{N}_{2} \mathrm{O}\)

(b) NO

(c) \(\mathrm{NO}_{2}\)

(d) \(\mathrm{~N}_{2} \mathrm{O}_{5}\)

ANSWER:

Step 1 of 3
To calculate the mass percent composition of Nitrogen in different compounds, we use the ratio of the mass of Nitrogen in the compound to the molar mass of the compound, all multiplied by 100%.

For (a) Nitrous Oxide \(\left(\mathrm{N}_{2} \mathrm{O}\right)\): The molar mass of Nitrous Oxide is 44.013 g/mol, and the molar mass of Nitrogen (N) in \(\mathrm{N}_{2} \mathrm{O}\) is 28.014 g/mol. Therefore, the mass percent composition of Nitrogen in \(\mathrm{N}_{2} \mathrm{O}\) is calculated as follows: (28.014 g/mol / 44.013 g/mol) x 100% = 63.65%

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