Q.

A 2.24L cylinder of oxygen at 1atm and 273K is found to develop a leakage. When the leakage was plugged the pressure dropped to 570mm of Hg. The number of moles of gas that escaped will be x×103, what is x?

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answer is 25.

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A 2.24L cylinder of oxygen at 1atm and 273K is found to develop a leakage. When the leakage was plugged the pressure dropped to 570mm of Hg. The number of moles of gas that escaped will be x×10−3, what is x?