Question

Would the calculated molar mass be higher, lower, or the same as the actual molar mass of the compound if the unknown contained an insoluble impurity?.

Answer 1

higher

Step-by-step explanation:

If it contains a impurity that is insoluble it won't dissolve completely, the solution would be smaller than it is supposed to be, when compared to a compound without such insoluble impurity. Molecular weight determination won't be accurate because the molecular weight obtained will be higher as a result of the fact that the mass of the solute would include the actual solute that is changing the temperature and the excess mass of the impurity.