120.0 g of KCl is added to 200 g of water at 40o C and then thoroughly mixed. Wh
ID: 949897 • Letter: 1
Question
120.0 g of KCl is added to 200 g of water at 40o C and then thoroughly mixed. Which of the following statements is true? a. … the solution is saturated and no solid precipitate is observed b. … the solution is saturated and solid precipitate is observed. c. … the solution is unsaturated and no solid precipitate is observed. d. … the solution is unsaturated and solid precipitate is observed. e. ….the solution is supersaturated and no solid precipitate is observed. f. … the solution is supersaturated and solid precipitate is observed.
Explanation / Answer
Solubility of KCl in water at 40°C is 40.3 g / 100g water
Therefore, at 40°C 200g of water can dissolve 80.6 g of KCl.
Out of 120g only 80.6g will dissolve.
So, the answer is f. … the solution is supersaturated and solid precipitate is observed
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.