Question
34 The solubility of KI is 50g in 100g of H_(2)O at 20°C . If 110 grams of KI are added to 200 grams of H_(2)O at the same temperature, A. all of the KI will dissolve. C. the solution will be super saturated. D. asaturated solution will form.
Answer
4.5
(170 Votes)
Zachary
Professional · Tutor for 6 years
Answer
D
Explanation
The solubility of KI in water at 20°C is given as 50g per 100g of water. This means that for every 100g of water, only 50g of KI can be dissolved at this temperature. In the question, 110g of KI is added to 200g of water. Since the solubility is 50g per 100g of water, 200g of water can dissolve up to 100g of KI. Since the amount of KI added (110g) is more than the amount that can be dissolved (100g), not all of the KI will dissolve. Therefore, a saturated solution will form, where the maximum amount of KI is dissolved in the water and any additional KI will remain undissolved. This corresponds to option D.