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25 March, 01:49

I'm looking at the barometer in my lab as i type this question. it says the pressure is 0.905 atm. what is this pressure expressed in torr?

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  1. 25 March, 06:18
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    1 atm is equivalent to 760 torr.

    To express 0.905 atm in torr, all you have to do is cross multiplication as follows:

    1 atm ... > 760 torr

    0.905 atm ... >? torr

    pressure = (0.905 * 760) / (1)

    pressure = 687.8 torr
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