8 Which of the following solutions is not unsaturated? A. a sugar cube that comp

Question

8 Which of the following solutions is not unsaturated? A. a sugar cube that completely dissolves when added to a cup of coffee B. a crystal added to a solution that does not change in size C. adding 25.0 g KCl to 100.0 g water D. adding 11.0 g NaNO3 to 25.0 g water 8 Which of the following solutions is not unsaturated? A. a sugar cube that completely dissolves when added to a cup of coffee B. a crystal added to a solution that does not change in size C. adding 25.0 g KCl to 100.0 g water D. adding 11.0 g NaNO3 to 25.0 g water 8 Which of the following solutions is not unsaturated? A. a sugar cube that completely dissolves when added to a cup of coffee B. a crystal added to a solution that does not change in size C. adding 25.0 g KCl to 100.0 g water D. adding 11.0 g NaNO3 to 25.0 g water

Explanation / Answer

Ans B

Explanation

A) since sugar cube is completely dissolved that means solution is not saturated

B) crstal does not change its size => no dissolution of crystal takes place which means solution is already saturated

C) solubiliy of KCl at room temperature is 34 g/100 mL , here only 25 g is added in 100 mL => solution is unstaurated

D)solubility of NaNO3 at room temperature is 22.8 g/ 25 mL , here 11 g is added in 25 mL => solution is unsaturated

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