A) 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. cobalt(II) hydroxide
A. Mg(OH)2
2. nickel(II) carbonate
B. PbBr2
C. NiS
D. Ni(CN)2
Write the expression for K in terms of the solubility, s, for each
salt, when dissolved in water.
cobalt(II) hydroxide
nickel(II) carbonate
Ksp =
B) Consider these compounds:
A. Mg(OH)2
B. BaF2
C. AgBr
D. BaSO3
Complete the following statements by entering the letter(s)
corresponding to the correct compound(s). (If more than one
compound fits the description, include all the relevant compounds
by writing your answer as a string of characters without
punctuation, e.g. ABC.)
Without doing any calculations it is possible to determine
that nickel(II) carbonate is more
soluble than 1, and nickel(II)
carbonate is less soluble than 2.
It is not possible to determine whether nickel(II)
carbonate is more or less soluble than 3 by simply comparing Ksp values.