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Explain and show all your work for full credit. This group assignment is over Ksp, Common...

Explain and show all your work for full credit.

This group assignment is over Ksp, Common Ion effect, solubility.

  1. Silver dichromate, Ag2Cr2O7 yields a saturated solution (Q=Ksp) with 8.3 x 10-3 g/100mL silver dichromate in water. What is the Ksp of silver dichromate?
    1. Ksp = 3.8 E -3
    2. Ksp = 2.8 E -11
    3. Ksp = 3.08 E -18
  1. What is the solubility (in M) in a 1.5 E-2M solution of sodium dichromate?
    1. 0.061 M
    2. 5.67 E-4 M
    3. 2.16 E-5 M
  1. What is the correct Ksp (aka Kc) expression for #1?
    1. Ksp = [Ag+][ Cr2O7-]
    2. Ksp = [Ag+][ Cr2O7-]/[ Ag2Cr2O7]
    3. Ksp = [Ag+]2[Cr2O7-2]

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