Question

Гормон щитовидной железы – тироксин массой 0,445 г растворили в бензоле массой 10 г. Температура кристаллизации полученного раствора составила 278,12 К. Рассчитайте молярную массу тироксина. ОТвет 684г/моль

Answer 1

Решение во вложении

Успехов в химии!

Answer 2

Calculating the Molar Mass of Thyroxine

To calculate the molar mass of thyroxine, we can use the given information about the mass of thyroxine and the mass of benzene, as well as the temperature of crystallization.

The molar mass of thyroxine can be calculated using the formula:

Molar mass = (mass of solute / moles of solute) * (moles of solute / mass of solute)

First, we need to calculate the moles of thyroxine using the mass of thyroxine and the mass of benzene.

Given: - Mass of thyroxine (solute) = 0.445 g - Mass of benzene (solvent) = 10 g - Temperature of crystallization = 278.12 K

Using the formula: Moles of solute = (mass of solute / molar mass of solute)

We can calculate the moles of thyroxine using the mass of thyroxine and the temperature of crystallization.

Let's proceed with the calculation.