WBJEE · Chemistry · Some Basic Concepts of Chemistry
At S.T.P. the volume of \(7.5 \mathrm{g}\) of a gas is \(5.6 \mathrm{L}\). The gas is
- A NO
- B \(\mathrm{N}_{2} \mathrm{O}\)
- C CO
- D \(\mathrm{CO}_{2}\)
Answer & Solution
Correct Answer
(A) NO
Step-by-step Solution
Detailed explanation
Given, mass of gas \((W)=7.5 \mathrm{g}\) Volume of gas at \(\operatorname{STP}(V)=56 \mathrm{L}\) \(\because\) Moles of gas at \(\mathrm{STP}=\frac{V(\mathrm{L})}{22.4(\mathrm{L})}=\frac{W}{M}\) Where \(M=\) molar mass of gas. \(\therefore \quad M=\frac{W \times 22.4}{V}\)…
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