Question

3.
A compound contains 92.9% carbon and 7.17% hydrogen. It's molecular mass is 78
μ.
Determine its molecular formula.

4.
Upon analysis, a compound is found to contain 33% silicon and 67% fluorine. It's
molecular mass is 170
μ. Determine its molecular formula.​

Answer 1

Answer:

molecules are lightly packed in hydrogen so it is quite sure it will be 67% flouride and molecular mass 170

Answer 2

Answer:

molecules are lightly packed in hydrogen so it is quite sure it will be 67% flouride and molecular mass 170

Thanks!!!!