   Chapter 15, Problem 104AP ### 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
7 views

# Calculate the mass, in grams, of NaCl present in each of the following solutions. a. 11.5 g of 6.25% NaCl solution b. 6.25 g of 11.5% NaCl solution c. 54.3 g of 0.91% NaCl solution d. 452 g of 12.3% NaCl solution

Interpretation Introduction

(a)

Interpretation:

The mass of NaCl present in 11.5g of 6.25%NaCl solution is to be calculated.

Concept Introduction:

The mass percentage of a compound present in a solution is calculated by dividing the mass of the compound present in the solution by the total mass of the solution and then multiplying it by 100. The formula for mass percentage is represented as:

mass%=MMt×100%

Where,

• M represents the mass of the compound present in the solution.
• Mt represents the total mass of solution.
Explanation

The mass of the NaCl solution is 11.5g.

The mass percentage of NaCl in the solution is 6.25%.

The formula for mass percentage is represented as:

mass%=MMt×100%

Where,

• M represents the mass of the compound present in the solution.
• Mt represents the total mass of solution.

Rearrange the above equation for the value of M

Interpretation Introduction

(b)

Interpretation:

The mass of NaCl present in 6.25g of 11.5%NaCl solution is to be calculated.

Concept Introduction:

The mass percentage of a compound present in a solution is calculated by dividing the mass of the compound present in the solution by the total mass of the solution and then multiplying it by 100. The formula for mass percentage is represented as:

mass%=MMt×100%

Where,

• M represents the mass of the compound present in the solution.
• Mt represents the total mass of solution.
Interpretation Introduction

(c)

Interpretation:

The mass of NaCl present in 54.3g of 0.91%NaCl solution is to be calculated.

Concept Introduction:

The mass percentage of a compound present in a solution is calculated by dividing the mass of the compound present in the solution by the total mass of the solution and then multiplying it by 100. The formula for mass percentage is represented as:

mass%=MMt×100%

Where,

• M represents the mass of the compound present in the solution.
• Mt represents the total mass of solution.
Interpretation Introduction

(d)

Interpretation:

The mass of NaCl present in 452g of 12.3%NaCl solution is to be calculated.

Concept Introduction:

The mass percentage of a compound present in a solution is calculated by dividing the mass of the compound present in the solution by the total mass of the solution and then multiplying it by 100. The formula for mass percentage is represented as:

mass%=MMt×100%

Where,

• M represents the mass of the compound present in the solution.
• Mt represents the total mass of solution.

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