The freezing point of pure benzene is 5.50 C kg.mol-1 , and its Kfp is −5.12 C kg.mol-1 . A 0.546 g sample of a animal hormone is dissolved in 15.0 g of benzene, and the solution freezes at 5.26 C . Determine the molar mass of the hormone. (You may assume that the hormone is a non-electrolyte).

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Principal Quantities and EOS

A physical quantity represents the physical state of a system. It is expressed as the product of a number and unit. The basic quantities used in science are length, mass, and time. The principal quantities are the quantities that are independent of other quantities.