To determine the grams of AlCl3 that need to be dissolved in 150g of water to achieve a specific vapor pressure, we can use Raoult's law.
Step-by-step explanation:
To determine the number of grams of AlCl3 that would have to be dissolved in 150g of water to give a solution with a vapor pressure of 38.7 torr at 35°C, we can use Raoult's law.
Raoult's law states that the vapor pressure of a solvent above a solution is equal to the vapor pressure of the pure solvent multiplied by the mole fraction of the solvent in the solution.
In this case, we are given the vapor pressure of the water and we need to find the mole fraction of the AlCl3 in the solution, which can then be used to calculate the grams of AlCl3.