Question

The vapour pressure of 2-propanol is 45.00 kPa at 330.5°C, but it fell to 28.22 kPa when 7.69 g of an involatile organic compound was dissolved in 250 g of 2-propanol. Calculate the molar mass of the compound.​

Answer 1

Answer:

equation for molar mass is

no. of moles= given mass / molar mass

i.e.

molar mass= no. of moles / given mass