Call Now to Set Up Tutoring:

(888) 888-0446

College Chemistry : Solubility Product Constant

Study concepts, example questions & explanations for College Chemistry

Create An Account

All College Chemistry Resources

1 Diagnostic Test 100 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #1 : Solubility Product Constant

$CaF_{2}(s)\rightleftharpoons\ Ca^{2+}(aq)\ +\ 2F^{-}(aq)$

Express the solubility product constant expression for the given reaction.

Possible Answers:

$K_{sp}=\frac{[Ca^{2+}][F^{-}]^{2}}{[CaF_{2}]}$

$K_{sp}=[Ca^{2+}][F^{-}]^{2}$

$K_{sp}=[Ca^{2+}][F^{-}]$

Correct answer:

$K_{sp}=[Ca^{2+}][F^{-}]^{2}$

Explanation:

The equilibrium given tells us how the solid dissolves in solution:

$CaF_{2}(s)\rightleftharpoons\ Ca^{2+}(aq)\ +\ 2F^{-}(aq)$

However, the solubility product constant (Ksp) given tells us the degree by which a solid dissolves in solution. The larger the Ksp, the more soluble a substance is in water. Writing this expression follows the same rules as other equilibrium constant expressions. Therefore solids and water (when it is the solvent) are omitted from this expression. You must raise the concentration of the substances involved to the power of its coefficient.

For the chemical reaction given, the Ksp is:

$K_{sp}=[Ca^{2+}][F^{-}]^{2}$

Report an Error

Example Question #1 : Solubility Product Constant

$PbCl_{2}(s)\rightleftharpoons\ Pb^{2+}(aq)\ +\ 2Cl^{-}(aq)$

Express the solubility product constant expression for the given reaction.

Possible Answers:

$K_{sp}=[Pb^{2+}][Cl^{-}]$

$K_{sp}=[Pb^{2+}][Cl^{-}]^{2}$

$K_{sp}=[Pb^{2+}][Cl^{-}]$

$K_{sp}=\frac{[Pb^{2+}][Cl^{-}]^{2}}{[PbCl_{2}]}$

Correct answer:

$K_{sp}=[Pb^{2+}][Cl^{-}]^{2}$

Explanation:

The equilibrium given tells us how the solid dissolves in solution:

$PbCl_{2}(s)\rightleftharpoons\ Pb^{2+}(aq)\ +\ 2Cl^{-}(aq)$

For the chemical reaction given, the Ksp is:

$K_{sp}=[Pb^{2+}][Cl^{-}]^{2}$

Report an Error

Example Question #1 : Solubility Product Constant

How many grams of $\textrm{BaF}_{\textrm{2}}$ are dissolved in 75.0 mL of a saturated solution of $\textrm{BaF}_{\textrm{2}}$ ?

$\textrm{BaF}_{\textrm{2}}(s)\rightleftharpoons\textrm{Ba}^{\textrm{2+}}(aq)\textrm{ + 2 F}^{\textrm{ -}}(aq)$

$\textrm{K}_{\textrm{sp}}=1.00\textrm{ x 10}^{-6}$

Possible Answers:

$0.0132\textrm{ g BaF}_{2}$

$0.0829\textrm{ g BaF}_{2}$

$0.166\textrm{ g BaF}_{2}$

$0.132\textrm{ g BaF}_{2}$

$1.10\textrm{ g BaF}_{2}$

Correct answer:

$0.0829\textrm{ g BaF}_{2}$

Explanation:

To calculate how many grams of $\textrm{BaF}_{\textrm{2}}$ are dissolved in the solution, we first solve for the molarity of the solution.

Using the dissociation equation

$\textrm{BaF}_{\textrm{2}}(s)\rightleftharpoons\textrm{Ba}^{\textrm{2+}}(aq)\textrm{ + 2 F}^{\textrm{ -}}(aq)$

We can write out the equation for the solubility product constant as

$\textrm{K}_{\textrm{sp}}=\textrm{[Ba}^{2+}][\textrm{F}^{\textrm{ -}}]^{2}$

$1.00\textrm{ x 10}^{-6}=\textrm{[Ba}^{2+}][\textrm{F}^{\textrm{ -}}]^{2}$

Because there are 2 fluoride ions for every bariumion, we can rewrite the equation as

$[\textrm{Ba}^{2+}]=x$

$1.00\textrm{ x 10}^{-6}=(x)(2x)^{2}$

Now solve for x

$1.00\textrm{ x 10}^{-6}=(x)(4x^{2})$

$1.00\textrm{ x 10}^{-6}=4x^{3}$

$x^{3}=\frac{1.00\textrm{ x 10}^{-6}}{4}=2.50\textrm{ x 10}^{-7}$

$x=\sqrt[3]{2.50\textrm{ x 10}^{-7}}=6.30\textrm{ x 10}^{-3}$

$[\textrm{Ba}^{2+}]=6.30\textrm{ x 10}^{-3}M$

Solve for the concentration of dissolved $\textrm{BaF}_{\textrm{2}}$

$[\textrm{BaF}_{2}]=[\textrm{Ba}^{2+}]=6.30\textrm{ x 10}^{-3}M$

Now that we have the concentration of dissolved $\textrm{BaF}_{\textrm{2}}$ , we can calculate how many grams are dissolved in the solution

$(6.30\textrm{ x 10}^{-3}M)(0.0750\textrm{ L})=4.73\textrm{ x 10}^{-4}\textrm{ mol}$

$(4.73\textrm{ x 10}^{-4}\textrm{ mol})(175.34\frac{\textrm{g}}{\textrm{mol}})=0.0829\textrm{ g BaF}_{2}$

Report an Error

View Tutors

Nicole
Certified Tutor

Western Governors University, Bachelor of Education, Special Education.

View Tutors

Ulises
Certified Tutor

Arizona State University, Bachelor in Arts, History.

View Tutors

Richard
Certified Tutor

Rutgers University-Newark, Bachelor of Science, Chemistry. Rutgers University-Newark, Doctor of Science, Chemistry.

All College Chemistry Resources

1 Diagnostic Test 100 Practice Tests Question of the Day Flashcards Learn by Concept

Popular Subjects

Chemistry Tutors in Seattle, Math Tutors in Seattle, Algebra Tutors in New York City, MCAT Tutors in New York City, Calculus Tutors in Seattle, Computer Science Tutors in Seattle, GRE Tutors in Dallas Fort Worth, Physics Tutors in Denver, LSAT Tutors in New York City, Calculus Tutors in Los Angeles

Popular Courses & Classes

SSAT Courses & Classes in Seattle, SSAT Courses & Classes in Chicago, GRE Courses & Classes in San Diego, LSAT Courses & Classes in San Diego, ACT Courses & Classes in Seattle, MCAT Courses & Classes in Phoenix, GRE Courses & Classes in Atlanta, ACT Courses & Classes in Phoenix, ISEE Courses & Classes in Atlanta, LSAT Courses & Classes in Boston

Popular Test Prep

GRE Test Prep in San Francisco-Bay Area, SAT Test Prep in San Diego, SSAT Test Prep in Atlanta, LSAT Test Prep in Boston, GRE Test Prep in Atlanta, SAT Test Prep in San Francisco-Bay Area, LSAT Test Prep in Los Angeles, GMAT Test Prep in Philadelphia, ISEE Test Prep in New York City, ACT Test Prep in Seattle

DMCA Complaint

If you believe that content available by means of the Website (as defined in our Terms of Service) infringes one or more of your copyrights, please notify us by providing a written notice (“Infringement Notice”) containing the information described below to the designated agent listed below. If Varsity Tutors takes action in response to an Infringement Notice, it will make a good faith attempt to contact the party that made such content available by means of the most recent email address, if any, provided by such party to Varsity Tutors.

Your Infringement Notice may be forwarded to the party that made the content available or to third parties such as ChillingEffects.org.

Please be advised that you will be liable for damages (including costs and attorneys’ fees) if you materially misrepresent that a product or activity is infringing your copyrights. Thus, if you are not sure content located on or linked-to by the Website infringes your copyright, you should consider first contacting an attorney.

Please follow these steps to file a notice:

You must include the following:

A physical or electronic signature of the copyright owner or a person authorized to act on their behalf; An identification of the copyright claimed to have been infringed; A description of the nature and exact location of the content that you claim to infringe your copyright, in \ sufficient detail to permit Varsity Tutors to find and positively identify that content; for example we require a link to the specific question (not just the name of the question) that contains the content and a description of which specific portion of the question – an image, a link, the text, etc – your complaint refers to; Your name, address, telephone number and email address; and A statement by you: (a) that you believe in good faith that the use of the content that you claim to infringe your copyright is not authorized by law, or by the copyright owner or such owner’s agent; (b) that all of the information contained in your Infringement Notice is accurate, and (c) under penalty of perjury, that you are either the copyright owner or a person authorized to act on their behalf.

Send your complaint to our designated agent at:

Charles Cohn Varsity Tutors LLC
101 S. Hanley Rd, Suite 300
St. Louis, MO 63105

Or fill out the form below:

Do not fill in this field

Contact Information

* Full legal name

Company name

* Phone number

* Email address

Address

* Address1

Address2

* City

* State

* Zipcode

* Country

Complaint Details

* URL of copyrighted work (where your original material is located)

* Please describe the copyrighted work so that it may be easily identified

I am the owner, or an agent authorized to act on behalf of the owner of an exclusive right that is allegedly infringed.

I have a good faith belief that the use of the material in the manner complained of is not authorized by the copyright owner, its agent, or the law.

This notification is accurate.

I acknowledge that there may be adverse legal consequences for making false or bad faith allegations of copyright infringement by using this process.

* Signature (your digital signature is legally binding)

HIGH SCHOOL

GRADUATE SCHOOL

K-8

Search 50+ Tests

math tutoring

science tutoring

foreign languages

elementary tutoring

other

Search 350+ Subjects

College Chemistry : Solubility Product Constant

Study concepts, example questions & explanations for College Chemistry

All College Chemistry Resources

Example Questions

Example Question #1 : Solubility Product Constant

Example Question #1 : Solubility Product Constant

Example Question #1 : Solubility Product Constant

All College Chemistry Resources

Report an issue with this question

DMCA Complaint

Contact Information

Address

Complaint Details

Email address:
Your name:
Feedback: