calculate the number of moleculesin each cubic metre of a gas at 1 atm and `27^(@)C`.

Explanation

To calculate the number of molecules in each cubic meter of a gas at 1 atm and 27°C, we can use the Ideal Gas Law, which is given by the equation:

\[ PV = nRT \]

Where:
- \( P \) = Pressure (in Pascals)
- \( V \) = Volume (in cubic meters)
- \( n \) = Number of moles
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