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  4. What is the empirical formula of a compound composed of O M n in equal weight ratio? (At. wt of M n=55 )

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Q. What is the empirical formula of a compound composed of $O$ & $M n$ in equal weight ratio? (At. wt of $M n=55$ )

Some Basic Concepts of Chemistry

Solution:

$Mn = x gm =\frac{ x }{55}=0.018\, x$

$O = x\, gm =\frac{ x }{16}=0.0625 x$

$\frac{0.018 x}{0.018 x}=1$

$\Rightarrow \frac{0.0625 x}{0.018 x} \approx 3.5$

$Mn _{1} O _{3.5} \Rightarrow Mn _{2} O _{7}$