Chemistry - Mole Concept Question with Solution | TestHub

ChemistryMole ConceptEmpirical and Molecular FormulaMedium2 min

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When 6.0 gm of a hydrocarbon (M.M. $= 30$ ) is burnt completely, $17.6 gm CO_{2}$ is formed. The molecular formula of hydrocarbon is

Answer:

Solution:

$C_{x} H_{y} + O_{2} ⟶ CO_{2} + H_{2} O$

POAC on C

$x \times \frac{6}{30} = \frac{17.6}{44}$

$x = 0.4 \times 5 \Rightarrow x = 2$

$C_{2} H_{y}$

$24 + y = 30$

$y = 6$

Stream:JEESubject:ChemistryTopic:Mole ConceptSubtopic:Empirical and Molecular Formula

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