The density of gas is `1.27 gL^(-1)` at `50^@C` and `0.987 xx 10^5` Pa. Calculate ist molar mass.

Explanation

To calculate the molar mass of the gas using the given density, temperature, and pressure, we can follow these steps:

### Step 1: Write down the ideal gas equation
The ideal gas equation is given by:
\[ PV = nRT \]
where:
- \( P \) = pressure of the gas
- \( V \) = volume of the gas
...