For two sparingly soluble salts of the same type, what does a larger solubility product indicate?
Answer and explanation
Correct answer: Higher solubility
For salts having the same dissolution stoichiometry, the relation between Ksp and molar solubility has the same form. A larger Ksp then corresponds to a larger equilibrium solubility. The phrase “same type” is essential: for salts such as 1:1 and 1:2 electrolytes, different powers of solubility occur, so numerical Ksp values cannot be compared directly without using the appropriate expressions.
Frequently asked questions
What is the correct answer to this question?
Higher solubility
Why is this the correct answer?
For salts having the same dissolution stoichiometry, the relation between Ksp and molar solubility has the same form. A larger Ksp then corresponds to a larger equilibrium solubility. The phrase “same type” is essential: for salts such as 1:1 and 1:2 electrolytes, different powers of solubility occur, so numerical Ksp values cannot be compared directly without using the appropriate expressions.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Equilibrium. Topic: Solubility product and common ion effect.
