For cerium(III) hydroxide, Ce(OH)3, Ksp equals 2.0  10-20. Calculate its molarsolubility

Ksp for calcium phosphate = 2*10^(-29)

Iodometric titration is a volumetric analysis technique that uses iodine and its oxidation/reduction as an indicator   Experiment   [OCl–]   [I–]   Rate at 293 K 1 0.040 M 0.020 M 0.00184 2 0.020 0.040 0.00092 3 0.020 0.020 0.00046   Determine the rate     What is k at 293 K?     (c ) If k is 0.2977 sec-2 at 40°c, what is EA?

Consider the insoluble compound cobalt(II) hydroxide , Co(OH)2. The cobalt(II) ion also forms a complex with ammonia. Write a balanced net ionic equation to show why the solubility of Co(OH), (s) increases in the presence of ammonia and calculate the equilibrium constant for this reaction. For Co(NH3)6 + , K¢= 7.7×10*. Be sure to specify states such as (aq) or (s). K = Submit Answer Retry Entire Group 9 more group attempts remaining

At a particular temperature, the solubility of In₂(SO₄)₃ in water is 0.0092 M. You have found Ksp to be 7.1 × 10⁻⁹. If solid In₂(SO₄)₃ is added to a solution that already contains 0.150 M In(NO₃)₃, what will the new solubility of the solid be?

Solid Naz SO4 is added slowly to a solution that is 0.37M in Pb(NO3), and 0.15M in Ba (NO3)2. In what order will solid PBSO4 and BaSO4 form? Calculate the percentage of Ba+ that precipitates just before PbSO4 begins to precipitate. Assume that Ksp (PbSO4) = 1.8 × 10–8 and Ksp (BaSO4) = 1.1 × 10¬10.

Suppose a student mixes 5.00 mL of 2.00 x 10 M Fe(NO,), with 4.00 mL of 2.00 x 10- M KSCN and 1.00 ml of water The student then determines the [FENCS] at equilibrium to be 9.25 x 10 M. Find the equilibrium constant for the following reaction. Show all your calcula- tions for each step. Fe + SCN -FENCS Step 1. Calculate the initial number of moles of Fe" and SCN (use Equation 12). moles of Fe* 100105 moles of SCN 80410-6 S00ML o DosooL 2.00101M SCN 400ML . 000400 L 2 00 104u mol Fest •2.0010M D0osooL 1.0e10-5 mel mot sCN 0u D00400L 2.001O 8.0210.6mol

Solid Na₂SO4 is added slowly to a solution that is 0.63M in Pb(NO3)2 and 0.68M in Ba (NO3)2. In what order will solid PbSO4 and BaSO4 form? Calculate the percentage of Ba²+ that precipitates just before PbSO4 begins to precipitate. Assume that Ksp (PbSO4) = 1.8 x 10-8 and Ksp (BaSO4) = 1.1 × 10-¹0. will precipitate first. Percentage

Will a precipitate form when 215.0 mL of 7.5 x 10^-4 M Mg(NO3)2 is added to 355.0 mL of 3.63 x 10^-2 M K3AsO4? Ksp Mg3(AsO4)2 = 2.3 x 10^-20

Calculate the solubility (in g/L) of calcium fluoride in water at 25°C if the  K sp for   is 1.5 x 10 -10 .