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Chemistry

9th Edition
Steven S. Zumdahl
ISBN: 9781133611097

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Section
BuyFindarrow_forward

Chemistry

9th Edition
Steven S. Zumdahl
ISBN: 9781133611097
Textbook Problem

Under standard conditions, what reaction occurs, if any, when each of the following operations is performed?

a. Crystals of I2 are added to a solution of NaCl.

b. Cl2 gas is bubbled into a solution of NaI.

c. A silver wire is placed in a solution of CuCl2

d. An acidic solution of FeSO4 is exposed to air.

For the reactions that occur, write a balanced equation and calculate Chapter 18, Problem 85E, Under standard conditions, what reaction occurs, if any, when each of the following operations is ,ΔG°, and K at 25°C.

(a)

Interpretation Introduction

Interpretation:

Various questions based on the displacement of one ion from its solution by other are to be answered and the E° , ΔG° and K for the possible reaction are to be calculated.

Concept introduction:

The relationship between reduction potential and standard reduction potential value and activities of species present in an electrochemical cell at a given temperature is given by the Nernst equation.

The value of Ecell is calculated using Nernst formula,

E=E°(RTnF)ln(Q)

At room temperature the above equation is specifies as,

E=E°(0.0591n)log(Q)

The relationship between cell potential and Gibbs free energy change is given by the formula,

ΔG°=nFE°cell

To determine: The reaction, if any, when crystals of I2 are added to solution of NaCl .

Explanation

The reduction potential value for I2 is,

I2+2e2IE°=0.52V

The reduction potential value for Cl

(b)

Interpretation Introduction

Interpretation:

Various questions based on the displacement of one ion from its solution by other are to be answered and the E° , ΔG° and K for the possible reaction are to be calculated.

Concept introduction:

The relationship between reduction potential and standard reduction potential value and activities of species present in an electrochemical cell at a given temperature is given by the Nernst equation.

The value of Ecell is calculated using Nernst formula,

E=E°(RTnF)ln(Q)

At room temperature the above equation is specifies as,

E=E°(0.0591n)log(Q)

The relationship between cell potential and Gibbs free energy change is given by the formula,

ΔG°=nFE°cell

To determine: The reaction that takes place when Cl2 gas is bubbled into a solution of NaI .

(c)

Answer:

c. There occurs no reaction when a silver wire is placed in a solution of CuCl2 .

Interpretation Introduction

Interpretation:

Various questions based on the displacement of one ion from its solution by other are to be answered and the E° , ΔG° and K for the possible reaction are to be calculated.

Concept introduction:

The relationship between reduction potential and standard reduction potential value and activities of species present in an electrochemical cell at a given temperature is given by the Nernst equation.

The value of Ecell is calculated using Nernst formula,

E=E°(RTnF)ln(Q)

At room temperature the above equation is specifies as,

E=E°(0.0591n)log(Q)

The relationship between cell potential and Gibbs free energy change is given by the formula,

ΔG°=nFE°cell

To determine: The reaction, if any, when a silver wire is placed into a solution of CuCl2

(d)

Interpretation Introduction

Interpretation:

Various questions based on the displacement of one ion from its solution by other are to be answered and the E° , ΔG° and K for the possible reaction are to be calculated.

Concept introduction:

The relationship between reduction potential and standard reduction potential value and activities of species present in an electrochemical cell at a given temperature is given by the Nernst equation.

The value of Ecell is calculated using Nernst formula,

E=E°(RTnF)ln(Q)

At room temperature the above equation is specifies as,

E=E°(0.0591n)log(Q)

The relationship between cell potential and Gibbs free energy change is given by the formula,

ΔG°=nFE°cell

To determine: The reaction, if any, an acidic solution of FeSO4 is exposed to air.

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Chapter 18 Solutions

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Ch-18 P-2ALQCh-18 P-3ALQCh-18 P-4ALQCh-18 P-5ALQCh-18 P-6ALQCh-18 P-7ALQCh-18 P-8ALQCh-18 P-9ALQCh-18 P-10ALQCh-18 P-11ALQCh-18 P-12ALQCh-18 P-13ALQCh-18 P-14ALQCh-18 P-15RORRCh-18 P-16RORRCh-18 P-17RORRCh-18 P-18RORRCh-18 P-19QCh-18 P-20QCh-18 P-21QCh-18 P-22QCh-18 P-23QCh-18 P-24QCh-18 P-25QCh-18 P-26QCh-18 P-27QCh-18 P-28QCh-18 P-29ECh-18 P-30ECh-18 P-31ECh-18 P-32ECh-18 P-33ECh-18 P-34ECh-18 P-35ECh-18 P-36ECh-18 P-37ECh-18 P-38ECh-18 P-39ECh-18 P-40ECh-18 P-41ECh-18 P-42ECh-18 P-43ECh-18 P-44ECh-18 P-45ECh-18 P-46ECh-18 P-47ECh-18 P-48ECh-18 P-49ECh-18 P-50ECh-18 P-51ECh-18 P-52ECh-18 P-53ECh-18 P-54ECh-18 P-55ECh-18 P-56ECh-18 P-57ECh-18 P-58ECh-18 P-59ECh-18 P-60ECh-18 P-61ECh-18 P-62ECh-18 P-63ECh-18 P-64ECh-18 P-65ECh-18 P-66ECh-18 P-68ECh-18 P-69ECh-18 P-70ECh-18 P-71ECh-18 P-72ECh-18 P-73ECh-18 P-74ECh-18 P-75ECh-18 P-76ECh-18 P-77ECh-18 P-78ECh-18 P-79ECh-18 P-80ECh-18 P-81ECh-18 P-82ECh-18 P-83ECh-18 P-84ECh-18 P-85ECh-18 P-86ECh-18 P-87ECh-18 P-88ECh-18 P-89ECh-18 P-90ECh-18 P-91ECh-18 P-92ECh-18 P-93ECh-18 P-94ECh-18 P-95ECh-18 P-96ECh-18 P-97ECh-18 P-98ECh-18 P-99ECh-18 P-100ECh-18 P-101ECh-18 P-102ECh-18 P-103ECh-18 P-104ECh-18 P-105ECh-18 P-106ECh-18 P-107ECh-18 P-108ECh-18 P-109ECh-18 P-110ECh-18 P-111ECh-18 P-112ECh-18 P-113AECh-18 P-114AECh-18 P-115AECh-18 P-116AECh-18 P-117AECh-18 P-118AECh-18 P-119AECh-18 P-120AECh-18 P-121AECh-18 P-122AECh-18 P-123AECh-18 P-124AECh-18 P-125AECh-18 P-126AECh-18 P-127AECh-18 P-128AECh-18 P-129AECh-18 P-130AECh-18 P-131AECh-18 P-132AECh-18 P-133AECh-18 P-134CWPCh-18 P-135CWPCh-18 P-136CWPCh-18 P-137CWPCh-18 P-138CWPCh-18 P-139CWPCh-18 P-140CPCh-18 P-141CPCh-18 P-142CPCh-18 P-143CPCh-18 P-144CPCh-18 P-145CPCh-18 P-146CPCh-18 P-147CPCh-18 P-148CPCh-18 P-149CPCh-18 P-150CPCh-18 P-151CPCh-18 P-152CPCh-18 P-153CPCh-18 P-154CPCh-18 P-155IPCh-18 P-156IPCh-18 P-157IPCh-18 P-158IPCh-18 P-159MPCh-18 P-160MP

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