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A 1.75-L container filled with CO2 gas at 25 °C and 225 kPa pressure springs a...

A 1.75-L container filled with CO2 gas at 25 °C and 225 kPa pressure springs a leak. When the container is re-sealed, the pressure is 165 kPa kPa and the temperature is 12 °C. How many moles of gas were lost?

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