AP EAMCET · Chemistry · Some Basic Concepts of Chemistry
Calculate the amount of \(\mathrm{NO}_2\) required for producing \(4 \mathrm{~g}\) moles of \(\mathrm{HNO}_3\) as per the chemical reaction, \(3 \mathrm{NO}_2+\mathrm{H}_2 \mathrm{O} \longrightarrow 2 \mathrm{HNO}_3+\mathrm{NO}\). Given, the gram molecular weights of di-nitrogen and di-oxygen gases are \(28 \mathrm{~g}\) and \(32 \mathrm{~g}\) respectively.
- A \(276 \mathrm{~g}\)
- B \(274 \mathrm{~g}\)
- C \(2 \mathrm{~g}\)
- D \(275 \mathrm{~g}\)
Answer & Solution
Correct Answer
(A) \(276 \mathrm{~g}\)
Step-by-step Solution
Detailed explanation
\(4 \mathrm{~g}\) mole \(\mathrm{HNO}_3=4 \times 63=252 \mathrm{~g} \mathrm{HNO}_3\) \[ \underset{(3 \times 46=138 \mathrm{~g})}{3 \mathrm{NO}_2+\mathrm{H}_2 \mathrm{O} \longrightarrow} \underset{(2 \times 63=126 \mathrm{~g})}{2} \mathrm{HNO}_3+\mathrm{NO} \] According to the…
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