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Consider the reaction for the production of NO2 from NO:2NO(g) + O2(g) ? 2 NO2(g)(a) If

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

Solution for problem 116P Chapter 11

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 116P

PROBLEM 116P

Consider the reaction for the production of NO2 from NO:

2NO(g) + O2(g) → 2 NO2(g)

(a) If 84.8 L of O2(g), measured at 35 °C and 632 mm Hg, is allowed to react with 158.2 g of NO, find the limiting reagent.

Step-by-Step Solution:
Step 1 of 3

Solution 116P

Given:

Volume of O2 =  84.8 L

Pressure =  632 mm Hg

Temperature = 35 oc

Mass of NO = 158.2 g

Here we will have to find out the limiting reagent

Explanation:

The given equation for the reaction is ,

2NO(g) + O2(g) → 2NO2(g)

 The way to solve this is to find the moles of O2 and NO2 that we have, to find moles O2: PV = nRT so n = PV/RT,

 where T = 35oC + 273 = 308 K and R = 62.36 L-mmHg/mol-K

n = (632 mmHg)(84.8L)/(62.36)(308K)

   = 2.79 moles O2 

To find moles of NO, atomic weights are N=14, O=16, and NO=30

158.2gNO 1 mol NO/30g NO = 5.27 moles NO

According to the equation, 2.79 moles O2 requires 2  2.79 = 5.58 moles NO, and we don't have that much NO, so NO is limiting agent.

Step 2 of 3

Chapter 11, Problem 116P is Solved
Step 3 of 3

Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

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Consider the reaction for the production of NO2 from NO:2NO(g) + O2(g) ? 2 NO2(g)(a) If