   Chapter 15, Problem 49QAP ### 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
15 views

# 49. Calculate the number of moles of the indicated ion present in each of the following solutions. a. Na+ ion in I .00 L of 0.251 M Na2SO4 solution b. Cl- ion in 5.50 L of 0.10 M FeCl3 solution c. NO3- ion in 100. mL of 0.55 M Ba(NO3)2 solution d. NH4+ ion in 250. mL of 0.350 M (NH4)2SO4 solution

Interpretation Introduction

(a)

Interpretation:

The number of moles of the indicated ion present in the given solution is to be calculated.

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=NumberofmolesofsoluteVolumeofsolutioninLiters.

Explanation

The volume and molarity of Na2SO4 solution is given to be 1.00L and 0.251M respectively.

The number of moles of a solute is calculated by the formula,

Numberofmolesofsolute=Volumeofsolution×Molarity

Substitute the values of volume of solution and molarity of Na2SO4 solution in the above expression.

Numberofmolesofsolute=1.00L×0.251M=0

Interpretation Introduction

(b)

Interpretation:

The number of moles of the indicated ion present in the given solution is to be calculated.

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=NumberofmolesofsoluteVolumeofsolutioninLiters.

Interpretation Introduction

(c)

Interpretation:

The number of moles of the indicated ion present in the given solution is to be calculated.

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=NumberofmolesofsoluteVolumeofsolutioninLiters.

Interpretation Introduction

(d)

Interpretation:

The number of moles of the indicated ion present in the given solution is to be calculated.

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=NumberofmolesofsoluteVolumeofsolutioninLiters.

### Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

#### The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started 