Which of the following contains maximum number of molecules?

Options

A. 1 g of `CO_(2)`
B. 1g `N_(2)`
C. 1 g `H_(2)`
D. 1g `CH_(4)`

Explanation

To determine which of the following substances contains the maximum number of molecules in 1 gram, we need to calculate the number of molecules present in 1 gram of each substance using their molar masses. The number of molecules in 1 gram can be found using the formula:

\[ \text{Number of molecules} = \frac{N_A}{\text{Molar mass (g/mol)}} \]

where \(N_A\) (Avogadro's number) is approximately \(6.022 \times 10^{23}\) molecules.

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