EBK FOUNDATIONS OF COLLEGE CHEMISTRY
EBK FOUNDATIONS OF COLLEGE CHEMISTRY
15th Edition
ISBN: 9781118930144
Author: Willard
Publisher: JOHN WILEY+SONS INC.
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Chapter 9, Problem 22PE

(a)

Interpretation Introduction

Interpretation:

A diagram with eight molecules of nitrogen reacting with six molecules of oxygen to give nitrogen dioxide has to be given and also the limiting agent has to be given.

Concept Introduction:

The limiting reactant of the reaction is the reactant that is completely used during the reaction.  Using the mole ratio and starting amounts of the reactants limiting reactant can be determined.

Example:

Consider a reaction starts with 30g CaCO3&11gHCl.  The values in grams has to be converted to moles by dividing with their molecular weights.  According to the mole ratio 0.3g of calcium carbonate require 0.6g of HCl completely.  Therefore HCl is the limiting agent.

(b)

Interpretation Introduction

Interpretation:

A diagram with fifteen atoms of iron reacting with twelve water molecules to give iron oxide has to be given and also the limiting agent has to be given.

Concept Introduction:

Refer to part (a).

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