In a weather report, the atmospheric pressure is given as 29.4 inches of mercury. What is the corresponding pressure in mm Hg?
2007-03-05 08:02:09 · 3 answers · asked by chelsea_cruz20 1 in Science & Mathematics ➔ Chemistry
This is a simple conversion of units:
We know that there are 25.4 mm per inch[1]. Therefore, there must be 25.4 mmHg per inHg.
Pressure(mmHg) = 25.4 * Pressure(inHg)
Pressure(mmHg) = 25.4 * 29.4
Pressure(mmHg) = 746.76
Therefore, the barometric pressure is 746.76 mmHg.
2007-03-05 08:09:04 · answer #1 · answered by Tim 4 · 0⤊ 0⤋
multiply 29.4 in factor of changing inch to mm,i dont no howmany inches is a mm but all u should understand is to find dis factor...
2007-03-05 16:24:26 · answer #2 · answered by liloofar 3 · 0⤊ 0⤋
29.4 in x (1 m / 39.4 in) = 0.746 m
0.746 m x (1000 mm / 1 m) = 746 mm
2007-03-05 16:09:56 · answer #3 · answered by chem geek 4 · 0⤊ 0⤋