For each of the salts on the left, match the salts on the right that can be comp
ID: 940193 • Letter: F
Question
For each of the salts on the left, match the salts on the right that can be compared directly, using Ksp values, to estimate solubilities.
(If more than one salt on the right can be directly compared, include all the relevant salts by writing your answer as a string of characters without punctuation, e.g, ABC.)
Write the expression for K in terms of the solubility, s, for each salt, when dissolved in water.
silver sulfate
copper(II) carbonate
Ksp =
Ksp =
Note: Multiply out any number and put it first in the Ksp expression. Combine all exponents for s.
For each of the salts on the left, match the salts on the right that can be compared directly, using Ksp values, to estimate solubilities.
(If more than one salt on the right can be directly compared, include all the relevant salts by writing your answer as a string of characters without punctuation, e.g, ABC.)
Write the expression for K in terms of the solubility, s, for each salt, when dissolved in water.
nickel(II) cyanide
calcium carbonate
Ksp =
Ksp =
Note: Multiply out any number and put it first in the Ksp expression. Combine all exponents for s.
1. silver sulfate A. PbI2 2. copper(II) carbonate B. CaCO3 C. CaCrO4 D. Ca3(PO4)2Explanation / Answer
Silver sulfate = Ag2SO4, hence the value of Ksp = 4s^3, where s is the solubility of SO4(2-)
Hence the correct answer for silver sulfate will be PbI2
Copper II carbonate will be Cu(+2) + CO3(2-) it will be s^2, which will be similar to CaCO3
CaCrO4 will be similar to NaCl,KCl,MgO,CaO
Ca(3)(PO4)2 ---- Mg3(PO4)2, Ba3(PO4)2
Ksp of silver sulfate = (2s)^2*s = 4s^3
Ksp of CuCO3 = s^2
Nickel (II) Cyanide = Ni(CN)2, it will be also equal to 4s^3
CaCO3 will be equal to s^2 again
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