   Chapter 15, Problem 4ALQ ### Introductory Chemistry: A Foundati...

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

#### Solutions

Chapter
Section ### Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
1 views

# ou have two solutions containing solute A. To determine which solution has the highest concentration of A in molarity, which of the following must you know? (There may be more than one answer.) the mass in grams of A in each solution the molar mass of A the volume of’ water added to each solution the total volume of the solution plain your answer.

Interpretation Introduction

Interpretation:

The correct options corresponding to the given statements are to be stated.

Concept Introduction:

There are many ways to determine the concentration of the solution. One of the most used methods is molarity. Molarity may be defined as the number of moles of the solute in one liter of the whole solution. Thus, the molarity can be calculated as:

M=molesofsolutemoletotalvolumeofsolutionL.

Explanation

Reason for correct option:

a. The formula for the calculation of molarity is:

M=molesofsolutemoletotalvolumeofsolutionL

The calculation of the number of moles is as follows:

Numberofmoles=Givenmassmolarmass

To calculate the molarity of the solution, the number of moles of solute in the solution is required and to calculate the number of moles, the mass of the solute is required.

Hence, the mass of A in each solution must be known to determine which solution has high concentration of A in molarity.

b. The formula for the calculation of molarity is:

M=molesofsolutemoletotalvolumeofsolutionL

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