A KNO3 solution containing 45 g of KNO3 per 100.0 g of water is cooled from 40 °C to 0 °C. What happens during cooling? (Use Figure 14.11.)

Video transcript

Hello everyone. So this problem being told by a solution was created by the solving 45 g of K C L. 03 and 100 g of water afterwards. The solution temperatures was lower 200 degrees Celsius to 10 degrees Celsius. So does K C L. 03 precipitate out of the solution. The ability of the K C L. 03 is given At 100°C as well as 10°C. Alright, so a substance eligibility is the amount of the substance that can be dissolved in a given volume of solvent at a particular temperature. So at 100 degrees Celsius, 45 g of the K C. L. 03 In 100 g of water is less than the scalability of KC. in water at this temperature. So we get from this information is that all The KCL. 03 will be dissolved Now at 0°C 45g of K. so 03 In 100 g of water is more is more valuable than that of the K. c. l. 03 In H 20. At this temperature. So we can get from this information is that excess? So I'll just you know that X. S. So access of the K. C. L. 03 will precipitate out. So again, the question here is does K. C. L three precipitate out of this solution? So the only thing that's precipitating out is the excess. So our answer then KCO. doesn't precipitate out of the solution. So this right here is going to be my final answer for this problem. Thank you all so much for watching.