a) Consider these compounds:
A. Pb3(PO4)2
B. NiS
C. Ca3(PO4)2
D. MnCO3
Complete the following statements by entering the letter
corresponding to the correct compound.
Without doing any calculations, it is possible to determine
that silver iodide is more soluble
than manganese carbonate, and silver iodide is less
soluble than lead(II) phosphate.
It is not possible to determine whether silver
iodide is more or less soluble than calcium phosphate by
simply comparing Ksp values.
b) 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.)
1.
barium chromate
A. PbS
2.
barium fluoride
B. CaCrO4
C. Fe(OH)2
D. CaF2
Write the expression for K in terms of the solubility, s, for each
salt when dissolved in water.
barium chromate
barium fluoride
Ksp = [Ba2+][CrO4^2-]
Ksp = [Ba2+][F^-]