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Chemistry

What mm and Hg mean?


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2009-09-16 18:45:46
2009-09-16 18:45:46

The abbreviation mm stands for millimeter. It is a metric unit of measure equal to 0.1 centimeters, or 0.001 meters. To compare to something tangible, it's the diameter of a pinhead. Hg is the symbol for the element mercury, the only metal that is a liquid at room temperature.

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mm = millimetre Hg = Mecury

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I assume you mean 740 mm Hg. 760 mm Hg = 760 Torr = 1 atmosphere. Simply divide 740 by 760 and you will get the pressure in atmospheres. 740 mm Hg / 760 mm Hg = 0.97 atmospheres

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Specific Gravity of Mercury hg is 13.6, so 1 mm Hg = 13.6 mm H2O, 1 mm H20 = 0.07353 mm Hg.

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No. 1 mm Hg = 133.3224 pascal 350 mm Hg = 46662.84 pascal 1 pascal = 0.0075006 mm Hg 350 pascal = 2.62522 mm Hg

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Pressure is measured in mm Hg


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