8g of `O_(2)` gas at S.T.P. is expanded so that volume is doubled. Calculate work in
atm L

Explanation

To solve the problem of calculating the work done when 8g of O₂ gas is expanded at STP (Standard Temperature and Pressure), follow these steps:

### Step 1: Calculate the number of moles of O₂
To find the number of moles, use the formula:
\[ \text{Number of moles} = \frac{\text{Given mass}}{\text{Molar mass}} \]

Given:
- Mass of O₂ = 8 g
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