Test Medicina Inglese 2015: simulazione online

Domanda 44 di 54

Potassium nitrate was found to have a solubility of 120 g in 100 g of water at 80°C and 50 g in 100 g of water at 25°C. 50 g of water was heated to 80°C and solid potassium nitrate added until the solution was just saturated. The solution was then cooled to 25°C when solid potassium nitrate separated out to leave a saturated solution.