Question

The vapour pressure of ether (m.w.=74)
is 442 mm Hg at 293 K. If 3 gm of
compound A are dissolved in 50 gm of
ether at this temperature. The vapour
pressure falls to 426 mm Hg.
Calculate the molecular mass of A.
Assume that the solution of A in ether
is very dilute​

Answer 1

Answer:

super question

Explanation:

Answer 2

so , molecular weight =

moles

givenweight

molecular weight = 123 gmol−1