Choose the most appropriate answer
Which of the following would weigh the least ?

Options

A. 2 gram atoms of Nitrogen
B. 1 mole of silver
C. 22.4 litre of oxygen gas at 1 atmospheric pressure and 273 K
D. ` 6.02 xx 10^(23)` atoms of carbon [Atomic masses : Ag = 108, N = 14, O = 16, C = 12]

Explanation

To solve the question "Which of the following would weigh the least?", we need to analyze the weight of each option provided:

1. **2 grams of nitrogen (N)**:
- The atomic mass of nitrogen (N) is 14 g/mol.
- Therefore, 2 grams of nitrogen corresponds to:
\[ \text{Number of moles} = \frac{\text{mass}}{\text{molar mass}} = \frac{2 \text{ g}}{14 \text{ g/mol}} = 0.1429 \text{ moles} \]
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