A gas of mass 32 gm has a volume of 20 litre at S.T.P. Calculate the gram molecular weight of the gas.

Explanation

To calculate the gram molecular weight of the gas, we can follow these steps:

### Step 1: Understand the given data
- Mass of the gas = 32 grams
- Volume of the gas at STP = 20 liters
- At STP, 1 mole of any gas occupies 22.4 liters.

### Step 2: Set up the proportion
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