Chemistry · Mole concept, molar mass, percentage composition, empirical and molecular formulae
Which of the following contains maximum number of atoms?
Which of the following contains maximum number of atoms?
- A. \( 4 \mathrm{gm} \) of oxygen
- B. \( 4 \mathrm{gm} \) of carbon dioxide
- C. \( 4 \mathrm{gm} \) of helium
- D. 4 gm of methane
Step-by-step solution
Calculate moles: oxygen (O2, 32 g/mol) gives 0.125 mol → 0.25 mol atoms; CO2 (44 g/mol) gives 0.0909 mol → 0.2727 mol atoms; helium (4 g/mol) gives 1 mol atoms; methane (CH4, 16 g/mol) gives 0.25 mol → 1.25 mol atoms. Maximum atoms in 4 g methane.
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