COMEDK · Chemistry · 1. Some Basic Concepts of Chemistry
\(80 \mathrm{~g}\) of oxygen contains as many atoms as in
- A \(80 \mathrm{~g}\) of hydrogen
- B 1 g of hydrogen
- C \(10 \mathrm{~g}\) of hydrogen
- D \(5 \mathrm{~g}\) of hydrogen
Answer & Solution
Correct Answer
(D) \(5 \mathrm{~g}\) of hydrogen
Step-by-step Solution
Detailed explanation
Number of atoms \(=\frac{\text { mass }}{\text { molecular mass }} \times N_{A}\) Number of atoms is oxygen \(=\) product of atoms in hydrogen \(\frac{80}{16} \times N_{A}=\frac{W}{1} \times N_{A}\) \(\therefore \quad W=\frac{80}{16}=5\) g of hydrogen
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