A gas occupies 500 mL at `25^@C` and 745 mm pressure. What would be its volume at S.T.P.?

Explanation

To solve the problem of finding the volume of a gas at Standard Temperature and Pressure (STP), we can use the ideal gas law relationship. Here’s the step-by-step solution:

### Step 1: Identify the given values
- Initial volume (V1) = 500 mL
- Initial temperature (T1) = 25°C = 25 + 273 = 298 K
- Initial pressure (P1) = 745 mm Hg
- Standard pressure (P2) = 760 mm Hg (at STP)
- Standard temperature (T2) = 0°C = 273 K (at STP)
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