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    pressure of the gas sample in the tube

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    In a manometer the mercury level at the open end of the tube is 215 mm higher than at the closed end of the tube. If the atmospheric pressure is 1 atm, what is the pressure of the gas sample in units of torr?
    A)1.28 torr
    B)545 torr
    C)975 torr
    D)215 torr

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    Solution Preview

    The pressure difference between the closed end (gas sample) and the open end is
    P_gas - P_air = rho * g * ...

    Solution Summary

    The solution calculates the pressure of the gas sample in the manometer.