What is the volume (in litres) of oxygen required at STP to completely convert $1.5 \mathrm{~mol}$ of…

What is the volume (in litres) of oxygen required at STP to completely convert $1.5 \mathrm{~mol}$ of sulphur into sulphur dioxide?
  1. 11.2
  2. 22.4
  3. 33.6
  4. 44.8

Solution

$\mathrm{S}+\mathrm{O}_2 \longrightarrow \mathrm{SO}_2$ $32 \mathrm{~g} \quad 32 \mathrm{~g}$ 1 mole $\quad 22.4 \mathrm{~L}$ 1 mole of $S$ required volume of $\mathrm{O}_2=22.4 \mathrm{~L}$ So, 1.5 mole of $S$ required volume of $\mathrm{O}_2=22.4 \times 1.5=33.60 \mathrm{~L}$

Asked in: AP EAMCET 2003

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