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Answer:
1 - Salts required that can be compared directly, using Ksp values, to estimate solubilities for copper (II) sulfide are - (Option b) ,
(Option c) and
(Option d)
2 - Salts that can be compared directly, using Ksp values, to estimate solubilities for zinc hydroxide are - (Option a)
Explanation:
values can be used to compare the solubility of salts that produce ions in a 1:1 ratio.
{copper (II)sulfide} dissociates with ions in ratio 1:1 .
Because the salts ,
and
have a 1:1 ion ratio, the solubilities of options b, c, and d can be compared to salt 1.
Values can be used to compare the solubility of salts that produce ions in a 1:2 or 2:1 ratio.
2. dissociates into ions in ratio 1:2 .
Because the ions in the salt are in a 1:2 ratio, the solubility of salt 2 can be compared to that of salt 'a'.
Hence , Salt 1 is matched with options b , c , d.
Salt 2 is matched with option a.