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The empirical formula of the given compound is [tex]\bold{SO_3}[/tex].
The correct option is B.
The empirical formula of a chemical compound is the simplest whole-number ratio of atoms contained in the substance.
Given,
1.0 g of S
1.5 g of O
To calculate the empirical formula, we will divide the masses of the elements by their atomic weight.
For sulfur
[tex]\bold{\dfrac{1.0}{32} =0.03125\; mol}[/tex]
For oxygen
[tex]\bold{\dfrac{1.5}{16} =0.09375\; mol}[/tex]
Now, divide the greater value of mole came by the smaller value
[tex]\bold{\dfrac{0.09375\; mol}{0.03125\;mol} = 3}[/tex]
Thus, the empirical formula for the given compound is 1 for S and 3 for O
[tex]\bold{SO_3}[/tex]
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