   Chapter 15, Problem 35CR ### 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

# 35. Calculate the indicated quantity for each solution. a. The mass of solute present in 235 mL of 0.251 M NaOH solution. b. The molarity of the solution when 0.293 mole of KNO is dissolved in water to a final volume of 125 mL. c. The number of moles of HCI present in 5.05 L of 6.01 M solution.

Interpretation Introduction

(a)

Interpretation:

The mass of the solute present in 235mL of 0.251MNaOH solution is to be calculated.

Concept Introduction:

The molarity of a solution is defined as the number of mole of solute dissolved in one liter of the solution. The formula for molarity is given as,

M=nV

Where,

• n represents the number of moles of the solute.
• V represents the volume of the solution.
Explanation

The molarity of the NaOH solution is 0.251M.

The volume of the NaOH solution is 235mL.

The molar mass of NaOH is 39.997gmol1.

The molarity of a solution is given as,

M=mMmV

Where,

• m represents the mass of the solute.
• V represents the volume of the solution.
• Mm represents the molar mass of the solute.

Rearrange the above equation for the value of m.

m=MMmV

Substitute the value of M, V and Mm in the above equation

Interpretation Introduction

(b)

Interpretation:

The molarity of the solution that contains 0.293mol of KNO3 in 125mL of solution is to be calculated.

Concept Introduction:

The molarity of a solution is defined as the number of mole of solute dissolved in one liter of the solution. The formula for molarity is given as,

M=nV

Where,

• n represents the number of moles of the solute.
• V represents the volume of the solution.
Interpretation Introduction

(c)

Interpretation:

The number of moles of HCl present in 5.05L of 6.01M solution is to be calculated.

Concept Introduction:

The molarity of a solution is defined as the number of mole of solute dissolved in one liter of the solution. The formula for molarity is given as,

M=nV

Where,

• n represents the number of moles of the solute.
• V represents the volume of the solution.

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