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Introductory Chemistry: A Foundati...

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

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BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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36. For each of the following solutions, the mass of solute is given, followed by the total volume of the solution prepared. Calculate the molarity of each solution.

a. 5.59 g CaCl2; 125 mL

b. 2.34 g CaCl2; 125 mL

c. 8.73 g CaCl2: 125 mL

d. 11.5 g CaCl2: 125 mL

Interpretation Introduction

(a)

Interpretation:

The molarity of the solution is to be calculated.

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

The conversion of liter to milliliter is as follows.

1L=1000mL

Thus the formula of molarity becomes,

M=molesofsolutemoletotalvolumeofsolutionmL×1000.

Explanation

The molarity can be calculated as,

M=molesofsolutemoletotalvolumeofsolutionmL×1000 (1)

The formula for number of moles is,

Numberofmoles=Given mass of substanceMolar mass of substance (2)

Substitute equation (2) in equation (1). The formula of molarity becomes,

M=Given mass of substanceMolar mass of substance×totalvolumeofsolutionmL

Interpretation Introduction

(b)

Interpretation:

The molarity of the solution is to be calculated.

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

The conversion of liter to milliliter is as follows.

1L=1000mL

Thus the formula of molarity becomes,

M=molesofsolutemoletotalvolumeofsolutionmL×1000.

(c)

Interpretation Introduction

Interpretation:

The molarity of the solution is to be calculated.

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

The conversion of liter to milliliter is as follows.

1L=1000mL

Thus the formula of molarity becomes,

M=molesofsolutemoletotalvolumeofsolutionmL×1000.

Interpretation Introduction

(d)

Interpretation:

The molarity of the solution is to be calculated.

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

The conversion of liter to milliliter is as follows.

1L=1000mL

Thus the formula of molarity becomes,

M=molesofsolutemoletotalvolumeofsolutionmL×1000.

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