   # On a hot day, a 200.0-mL sample of a saturated solution of PbI 2 was allowed to evaporate until dry. If 240 mg of solid PbI 2 was collected after evaporation was complete, calculate the K sp value for PbI 2 on this hot day. ### Chemistry: An Atoms First Approach

2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243

#### Solutions

Chapter
Section ### Chemistry: An Atoms First Approach

2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243
Chapter 15, Problem 83AE
Textbook Problem
1 views

## On a hot day, a 200.0-mL sample of a saturated solution of PbI2 was allowed to evaporate until dry. If 240 mg of solid PbI2 was collected after evaporation was complete, calculate the Ksp value for PbI2 on this hot day.

Interpretation Introduction

Interpretation: A 200.0mL sample of a saturated solution of PbI2 is given to be allowed to evaporate until dry. The Ksp value for PbI2 , if 240mg of solid PbI2 was collected after the completion of the evaporation process is to be calculated.

Concept introduction: Solubility is defined as the maximum amount of solute that can dissolve at a certain amount of solvent at certain temperature. The solubility product, Ksp is the equilibrium constant that is applied when salt partially dissolve in a solvent. The solubility product of dissociation of AxBy is calculated by the formula,

Ksp=[A]x[B]y

### Explanation of Solution

Explanation

To determine: The Ksp value for PbI2 , if 240mg of solid PbI2 was collected after the completion of the given evaporation process.

The number of moles of of PbI2 is 5.21×10-4mol_ .

Given

Mass of PbI2 is 240mg(0.240g) .

Volume of the sample is 200.0mL(0.200L) .

The molar mass of PbI2 =Pb+2I=(207+(2×127))g/mol=461g/mol

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

Numberofmoles=GivenmassMolarmass

Substitute the value of the given mass and the molar mass of PbI2 in the above expression.

Numberofmoles=0.240g461g/mol=5.21×10-4mol_

The solubility of PbI2 is 2.6×10-3mol/L_ .

The solubility is calculated by the formula,

Solubility=NumberofmolesVolumeofsolution(L)

Substitute the value of the calculated number of moles of PbI2 and the volume of the solution in the above expression.

Solubility=5.21×104mol0.200L=2.6×10-3mol/L_

The Ksp value for PbI2 is 7

### 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

Find more solutions based on key concepts
The bodys stores of can sustain cellular activities when the intervals between meals become long. a. vitamins b...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

How are granules and super granules related? How do they differ?

Horizons: Exploring the Universe (MindTap Course List)

An engine does 15.0 kJ of work while exhausting 37.0 kJ to a cold reservoir. What is the efficiency of the engi...

Physics for Scientists and Engineers, Technology Update (No access codes included)

What is the difference between sensible and nonsensible heat?

Oceanography: An Invitation To Marine Science, Loose-leaf Versin 