acholly05
contestada

Please help :)
A compound has the empirical formula C2H3O and a molecular mass of 172 mol. What is its molecular formula?
a. C11H10 05
b. C6H9O3
c. C8H12O4
d. C4H6O2

Respuesta :

Empirical formula mass :-

[tex]\\ \tt\Rrightarrow C_2H_3O[/tex]

[tex]\\ \tt\Rrightarrow 24+16+3=43g/mol[/tex]

n:-

  • Molar mass/Empirical formula mass

[tex]\\ \tt\Rrightarrow \dfrac{172}{43}[/tex]

[tex]\\ \tt\Rrightarrow 4[/tex]

Molecular formula

  • 4(C_2H_3O)=C_8H_12O_4

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