Mole ConceptMedium
Question
A volume of 10 ml chlorine gas combines with 25 ml of oxygen gas to form 10 ml of a gaseous compound. If all the volumes are measured at the same pressure and temperature, then what is the molecular formula of compound formed?
Options
A.Cl2O
B.Cl2O7
C.ClO2
D.Cl2O5
Solution
$\frac{x}{2}Cl_{2} + \frac{y}{2}O_{2} \rightarrow Cl_{x}O_{y}$
$10\text{ mL} \text{10}\frac{y}{x}\text{ mL=25 mL} \frac{20}{x}\text{ml = 10 mL}$
Hence, x = 2 and y = 5 ⇒ Cl2O5
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