Question

what is formula of finding empirical formula , molecular mass, and molecular formula?

Answer 1

1. emperical formula of C6H12O6
=CH2O
2.molecular mass of H2O
=2×1+16
=18
=2×atomic mass of hydrogen+atomic mass of oxygen
3.molecular formula of water is H2O.

Answer 2

the mass of each element = the percent given. Convert the mass of each element to moles using the molar mass from the periodic table. Divide each mole value by the smallest number of moles calculated. ... This is the mole ratio of the elements and is represented by subscripts in the empirical formula.