Question

A Compound 8% by Mass Of Sulphur The Least Molecular Mass Of Compound is
a) 200
b) 180
c) 400
d) 160

Answer 1

Answer:

The compound has 8% by Mass of Sulphur.

As atoms cannot be present in fractions in a compound , if we consider the least condition for the given compound then it must have at least 1 sulphur atom per molecule.

Atomic mass of Sulphur is 32

so..... 8% of its molecular mass is 32

therefore 100% of its molecular mass

will be....(32/8)*100=400

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