When 25.5 grams of a molecular substance is dissolved in 225g benzene, the solution begins to freeze at -5.05C. Calculate the molar mass of this solute (I need to understand the work, and look at the image attached for the key for benzene.

When 255 grams of a molecular substance is dissolved in 225g benzene the solution begins to freeze at 505C Calculate the molar mass of this solute I need to und class=