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A container holds N2, He, O2, and Ar. The total pressure is 925 mmHg. If the...

A container holds N2, He, O2, and Ar. The total pressure is 925 mmHg. If the partial pressure of nitrogen is 255 mmHg, helium is 240 mmHg, and oxygen is 150 mmHg, then what is the partial pressure of argon (in mmHg)?

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