How many grams of water will dissolve 350 grams of potassium chloride at 10 degrees?

At 10 degrees Celsius, potassium chloride (KCl) has a solubility of approximately 30 grams per 100 grams of water. To dissolve 350 grams of KCl, you would need about 1,166.67 grams of water, calculated by taking the ratio of the solubility: ( 350 , \text{g KCl} \times \frac{100 , \text{g water}}{30 , \text{g KCl}} ). Thus, around 1,167 grams of water are required to fully dissolve 350 grams of KCl at that temperature.