Consider a reaction represented by the following balanced equation :math&gt; 2 A + 3 B → C + 4 D u find that it requires equal masses of A and B so that there are no reactants left over. Which of the following is true? Justify your choice. l type='a'&gt; The molar mass of A must be greater than the molar mass of B. i&gt;The molar mass of A must be less than the molar mass of B. i&gt;The molar mass of A must be the same as the molar mass of B.

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781337399425

Chapter
Section

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781337399425
Chapter 9, Problem 13ALQ
Textbook Problem
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Consider a reaction represented by the following balanced equation:math> 2 A + 3 B → C + 4 D u find that it requires equal masses of A and B so that there are no reactants left over. Which of the following is true? Justify your choice.l type='a'>The molar mass of A must be greater than the molar mass of B.i>The molar mass of A must be less than the molar mass of B.i>The molar mass of A must be the same as the molar mass of B.

Interpretation Introduction

Interpretation:

For the given reaction, equal masses of A and B is required such that no reactants are left, whether the given statements are true or not is to be predicted.

Concept Introduction:

The number of moles is calculated by the formula,

Number of moles=Given massMolar mass

Where, molar mass is the mass of one mole of a substance. One mole contains 6.022×1023 atoms.

Explanation of Solution

Reason for true statements: No reactants are left over because 2 moles of A completely react with 3 moles of B.

Since, x2>x3, where x2 is the molar mass of A and x3 is the molar mass of B. Molar mass of A>Molar mass of B.

(a) The given reaction is,

2A+3BC+4D

No reactants are left over because 2 moles of A completely react with 3 moles of B.

Let the given mass of A and B be x

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