   Chapter 15, Problem 82QAP ### 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

# 82. Calculate the normality of each of the following solutions. a. 0.134 M NaOH b. 0.00521 M Ca(OH)2 c. 4.42 M H3PO4

Interpretation Introduction

(a)

Interpretation:

The normality of the given solution is to be calculated.

0.134N

NaOH.

Concept Introduction:

The atomic mass of an element is defined as the sum of number of protons and number of neutrons. Molar mass of an element is determined from atomic mass of an element.

The number of moles is calculated by the formula,

Moles=MassgMolarmass

The molarity is calculated by the formula,

Molarity=NumberofmolesofsoluteVolumeofsolutionL

The normality of the solution is calculated by the formula,

Normality=Molarity×NumberofH+orOHions.

Explanation

The molarity of NaOH solution is given to be 0.134M. One equivalent of sodium hydroxide produces one mole of OH ion.

The normality of NaOH solution is calculated by the formula,

Normality=Molarity×NumberofOHx

Interpretation Introduction

(b)

Interpretation:

The normality of the given solution is to be calculated.

0.00521M

CaOH2.

Concept Introduction:

The atomic mass of an element is defined as the sum of number of protons and number of neutrons. Molar mass of an element is determined from atomic mass of an element.

The number of moles is calculated by the formula,

Moles=MassgMolarmass

The molarity is calculated by the formula,

Molarity=NumberofmolesofsoluteVolumeofsolutionL

The normality of the solution is calculated by the formula,

Normality=Molarity×NumberofH+orOHions.

Interpretation Introduction

(c)

Interpretation:

The normality of the given solution is to be calculated.

4.42M

H3PO4.

Concept Introduction:

The atomic mass of an element is defined as the sum of number of protons and number of neutrons. Molar mass of an element is determined from atomic mass of an element.

The number of moles is calculated by the formula,

Moles=MassgMolarmass

The molarity is calculated by the formula,

Molarity=NumberofmolesofsoluteVolumeofsolutionL

The normality of the solution is calculated by the formula,

Normality=Molarity×NumberofH+orOHions.

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