Question

An organic compound on analysis was found to contain 0.032% of sulphur by mass. The molecular mass of the compound, if its one molecule contains two sulphur atoms, i

Answer 1

Explanation:

Organic compound contains 0.032% of sulphur by mass.

Let the molecular mass of compound be 'X

′

.

Atomic mass of sulphur - 32g

Atomic mass of 2 sulphur atoms = 32×2 = 64gm

weight of sulphur in compound = percentage of sulphur × total molecular weight of compound

64gm = 0.032% ×X =

100

0.032

×X

X=

0.032

64×100

= 200000gm

The molecular weight of the compound is 200000gm.

Hence,option D is correct answer