The volume occupied by 0.32 g of a gas at S.T.R is 224 mL. Calculate the molecular mass of the gas.

Explanation

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

### Step 1: Understand the relationship between volume and moles of gas
At standard temperature and pressure (S.T.P), 1 mole of any gas occupies 22,400 mL.

### Step 2: Calculate the number of moles of the gas
Given that the volume occupied by the gas is 224 mL, we can find the number of moles using the formula:

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