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20 August, 07:12

If the manometer reading is 305 mm and the atmospheric pressure is 1.03 atm, what is the pressure of the gas in the flask?

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  1. 20 August, 07:24
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    We need to make sure that the pressure is in the same units.

    let's convert the atm to mmHg. remember that 1 atm = 760 mmHg

    1.03 atm (760 mmHg / 1 atm) = 783 mmHg

    to find the pressure of the gas, you just need to subtract the values

    pressure of gas = 783 - 305 = 478 mmHg
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