Respuesta :
The empirical formula is C6H8O7.
What is an empirical formula?
A formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms, is known as empirical formula.
This can be done by calculating molar ratio of elements using masses and molar masses of the element.
Mass of Carbon (C) in given compound is= 37.51g
Mass of Hydrogen (H) in given compound is= 4.20g
Mass of Oxygen (O) in given compound is= 58.29g
Molar mass of C = 12.0107g
Molar mass of H = 1.00784g
Molar mass of O = 15.999g
by diving the mass of elements with their respective molar masses we get number of moles of elements:
no. of moles of C= 37.51/12= 3.123moles
no. of moles of H= 4.20/1.00784 =4.167moles
no. of moles of O = 58.29/15.999 = 3.643moles
Molar ratio of elements/atoms can be obtained by diving the above number of moles with the lesser number of moles in the above three,
C= 3.123/3.123
H= 4.167/3.123
O= 3.653/3.123
By multiplying each ratio with '6' we get whole number.
C= 1*6
H= 1.334*6
O= 1.166*6
The empirical formula is= C6H8O7.
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