passwella.
Menu

JAMB Chemistry 2007 Question 46

Question 46

Solubility and Solutions

A supersaturated solution is said to contain

  1. A.more solute than it can dissolve at that temperature in the presence of undissolved solute
  2. B.as much solute as it can dissolve at that temperature in the presence of undissolved solute
  3. C.as much solute as it can dissolve at that temperature
  4. D.more solute than it can dissolve at that temperature.
Show the answer and explanation

Answer: D (more solute than it can dissolve at that temperature.)

Explanation

A supersaturated solution holds more dissolved solute than a saturated solution at that temperature. It is unstable: a speck of undissolved solute makes the excess crystallise.