Calculate the weight of `CH_(4)` in a `9 dm^(3)` cylinder at 16 bar and `27^(@)C`
`(R =0.083 "bar" dm^(3) K^(-1))` .

Explanation

To calculate the weight of methane (CH₄) in a 9 dm³ cylinder at 16 bar and 27°C, we can use the ideal gas equation:

\[ PV = nRT \]

Where:
- \( P \) = pressure in bar
- \( V \) = volume in dm³
- \( n \) = number of moles
...