Verified answer

The molecular formula of Benzoyl peroxide : C₁₄H₁₀O₄

Further explanation  

The empirical formula (EF) is the smallest comparison of atoms of compound forming elements.  

The molecular formula (MF) is a formula that shows the number of atomic elements that make up a compound.  

(empirical formula) n = molecular formula  

(EF)n=MF  

Given

The empirical formula is C₇H₅O₂

Required

The molecular mass

Solution

Ar C = 12 g/mol

Ar H = 1 g/mol

Ar O = 16 g/mol

Molar mass of the empirical formula :

= 7 x 12 + 5 x 1 + 2 x 16

= 121 g/mol

Input the value :

(EF)n = MF

So the molecular formula :

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The molecular formula of the alcohol :C₃H₈O (propanol)

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molar mass  

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