TS EAMCET · Chemistry · Some Basic Concepts of Chemistry
Calculate the approximate mass (in g) of \(\mathrm{H}_2 \mathrm{~S}\) required for the following reaction when \(15 \mathrm{~L}\) of oxygen at STP reacts completely. \(x \mathrm{H}_2 \mathrm{~S}(g)+y \mathrm{O}_2(g) \longrightarrow a \mathrm{SO}_2(g)+b \mathrm{H}_2 \mathrm{O}(g)\) ( molar mass of \(\mathrm{H}_2 \mathrm{~S}=34 \mathrm{~g} \mathrm{~mol}^{-1}\) )
- A 12.11
- B 15.16
- C 34.12
- D 68.24
Answer & Solution
Correct Answer
(B) 15.16
Step-by-step Solution
Detailed explanation
\(2 \mathrm{H}_2 \mathrm{~S}+3 \mathrm{O}_2 \longrightarrow 2 \mathrm{SO}_2+2 \mathrm{H}_2 \mathrm{O}\) From balanced equation 3 moles of \(\mathrm{O}_2\) reacts with 2 moles of \(\mathrm{H}_2 \mathrm{~S}\) \(22.4 \mathrm{~L}\) of \(\mathrm{O}_2=1 \mathrm{moI}\)…
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