Question

the vapour pressure of ether at 20’c is 442mm when 7.2g of a solute is dissolved in 60g ether.vapour pressure is lowered by 32 unit calculate the m. wt of solute if mol. wt of ether is 74

Answer 1

Answer:

Explanation:

    we have formula that RLVP = w2 x m1/ m2 x w1

          where RLVP is the relative lowering of vapour pressure

                                i.e (P - P1)/P = 410/442

                       w2 is gm of solute m2 mwt of solute

                       w1 is gm of solvent m1 mwt of solvent

               put the values u will get m2 value

       hope u get it