K sp solubility constant experiment 31
This presentation is the property of its rightful owner.
Sponsored Links
1 / 10

K sp : Solubility Constant Experiment # 31 PowerPoint PPT Presentation


  • 112 Views
  • Uploaded on
  • Presentation posted in: General

K sp : Solubility Constant Experiment # 31. Purpose: To determine the solubility product constant for a sparingly soluble compounds. Equilibrium. A+B → C +D.

Download Presentation

K sp : Solubility Constant Experiment # 31

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


K sp solubility constant experiment 31

Ksp: Solubility ConstantExperiment # 31

  • Purpose:

    • To determine the solubility product constant for a sparingly soluble compounds.


Equilibrium

Equilibrium

A+B → C +D

  • At Equilibrium : the rate forward producing products (C + D) equals the rate reverse producing reactants (A + B ).

  • Thus products (C +D) are being produced at the same rate as the reactants (A + B) are being produced.

  • Solubility Product Constant the degree to which the solid(solute) is soluble in water.


K sp solubility constant experiment 31

Ksp = [Cu+2][IO3-]2

When soln is saturated

Ion product

Part # 1

Cu(IO3)2- Cu+2 + 2IO3-1solidIons in soln


Data for calibration graph

Data for Calibration Graph


K sp solubility constant experiment 31

Lou Tisone

118-30

Concentration Vs. Absorbance

A

B

S

M X 10- 3


K sp solubility constant experiment 31

Part #1

  • Determine Ksp by:

  • the initial concentration of Cu+2 is 8.00 x 10-2

  • This is the concentration for all 3 trials

  • The initial concentration of IO3- 1 determined in pre- lab

  • This changes for each trial

  • Determinethe equilibrium concentration of both IO3-1 (from the data) and the Cu+2 equilibrium from (Graph).


K sp solubility constant experiment 31

Table #31.1

y = 0.08x+2.0X10-16

From Calibration Graph


Part 2 determine the ksp of mom

Part # 2 Determine the Ksp of MOM

Mg(OH)2 → Mg 2++2(OH) -1

trial # 1

pOH = 14-8.75 = 5.25

OH-1= 10 - 5.25 = 5.62X10 -6

Mg 2+= ½* 5.62X10 -6 =

2.81X10 -6

KSP= [Mg 2+]*[OH-1]2 =

8.87X10-17


Due next week

Due Next Week

  • Pages 83-84

  • Ignore # 5


  • Login