What is the concentration of lead ions and chromate ions in a saturated lead chromate solution at 25°C? (Ksp= 1.8 x 10-14)
Let S is molar concentration of Pb2+ and CrO4 2-
PbCrO4(s) -----> Pb2+(aq) + CrO4 2-(aq)
S S
Ksp = [Pb2+] [CrO4 2-]
1.8*10^-14 = S * S
S = 1.342*10^-7 M
So, [Pb2+] = [CrO4 2-] = S = 1.34*10^-7 M ....Answer
What is the concentration of lead ions and chromate ions in a saturated lead chromate solution...
The following equation represents a saturated solution of lead chromate PbCrO4(s) ⇌ Pb2+(aq) + CrO4 2– (aq) Ksp at 298 K was determined to be 1.8 x10^–14. What will happen if solid lead nitrate is added to the system? (A) Have no effect. (B) Reduce the value of the Ksp for lead chromate. (C) Increase the value of Ksp for lead chromate. (D) Shift the reaction to the right. (E) Shift the reaction to the left.
A solution contains 1.09x10-2 M calcium nitrate and 8.55x10-3 M lead acetate. Solid ammonium chromate is added slowly to this mixture. A. What is the formula of the substance that precipitates first? formula B. What is the concentration of chromate ion when this precipitation first begins? [Cro_2-1- M Solubility Product Constants (Ksp at 25 °C) Type Ksp Formula ZnCO3 1.5 x 10-11 Chlorides PbCl2 1.7 x 10-5 AgCi 1.8 10-10 Chromates BaCrO4 2.0 10-10 CaCrO4 7.1 x 10-4 PbCr04 1.8...
6) What is the concentration of lead ions in a solution of 0.15 M Nal saturated with Pbl2? (Ksp for Pbl2 = 7.9 x 10): a) 2.0 x 10-3 M b) 5.3 x 10-M ) 1.7 x 10-11 M.) 3.5 x 10-7M 7.9 X 10 .15 X X = 5.3X108 7) Which of the following reactions would produce a negative value of AS? ( 7 nChlag) + H2(g) NS-+
1. A saturated solution of lead(II) chloride was prepared by dissolving PbCl2 solid in water. The concentration of Pb+2 ion in the solution was found to be 1.62*10^-2M . Calculate Ksp for PbCl2 . 2. The value of Ksp for silver chromate, Ag2CrO4 is 9.0*10^-12 . Calculate the solubility of Ag2CrO4 in grams per liter.
ksp for lead chromate : 1.8x10^-14 The molar solubility of lead chromate in a 0.130 M lead nitrate solution is
POST-LABORATORY QUESTIONS student analyzed a saturated CaF2 solution by the ion-exchange chromatography/titration method and found that [Ca] 2.14 x 10 M. Write out the expression for Ksp of CaF and determine the numerical value of Ksp Suppose a student overtitrates the eluent from the CaSO, experiment (that is, she titrates to a persistent deep pink endpoint). Will the calculated value of Ksp be too high, too low, or unaffected? Explain. 2. 3. The value of Kp for lead (lIl) chromate...
What is the concentration of barium ions in a saturated solution of barium sulfate? Ksp(BaSO4) = (2.321x10^-8)
At 25°C, the solubility product constant (Ksp) for silver chromate, Ag2 CrO4, is 1.1 x 10-12. What is the concentration of Ag+ ions in a saturated solution? 1.3 x 10M 3.3 x 10-5M 1.0 x 10 M 6.5 x 10-SM 2.1x 10 M
Steps receive zero UE. LULA QUE 2.1. What is the lead concentration of a saturated solution of lead (11) sulfate containing 0,010 M Na SOA? Ksp sou6.3 10.
4.) Calculate the concentration of ions in the following saturated solutions: a.) [I] in Agl solution with (Agt) = 3.7 x 10-?M Ksp Agi = 8.3 x 10-17 b.) [A13+) in Al(OH)3 solution with (OH) = 8.3 x 10M Ksp Al(OH)3 = 1.8 x 10-33 5.) Calculate the heats of combustion for the following reactions from the standard enthalpies of formation listed in Appendix 3: a.) C2H4(g) + 302(8) --> 2CO2() + 2H2O() delta H (kJ/mol): CHA(g) = +52.3 CO2(8)...