The empirical formula of an organic compound carbon & hydrogen is `CH_(2)` The mass of `1"litre"` of organic gas is exactly equal to mass of 1 litre `N_(2)` therefore molecular formula of organic gas is .

Explanation

To find the molecular formula of the organic gas with the empirical formula \( CH_2 \), we can follow these steps:

### Step 1: Determine the mass of 1 liter of nitrogen gas
The molar mass of nitrogen gas (\( N_2 \)) is approximately \( 28 \, g/mol \). According to the problem, the mass of 1 liter of the organic gas is equal to the mass of 1 liter of nitrogen gas.

### Step 2: Use the Ideal Gas Law
Using the Ideal Gas Law, we know that at standard temperature and pressure (STP), 1 mole of any gas occupies 22.4 liters. Therefore, the mass of 1 liter of nitrogen can be calculated as follows:
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