A 3.00 g mass of compound X was added to 50.0 g of water and it is found that the freezing point has decreased by 1.25 °C.
What is the molar mass of X if it has a van't Hoff factor of 3?
g/mol (Kf of water = 1.86 K. kg/mol)
Your answer should be rounded to three significant figures. Do not include units
in your answer.

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt