High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify chemical substances. The pressures used in this procedure range from around 500 kilopascals (500,000 Pa ) to about 60,000 kPa (60,000,000 Pa ). It is often convenient to know the pressure in torr. If an HPLC procedure is running at a pressure of 3.65×108Pa , what is its running pressure in torr?

Question

High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify chemical substances. The pressures used in this procedure range from around 500 kilopascals (500,000 Pa ) to about 60,000 kPa  (60,000,000 Pa ). It is often convenient to know the pressure in torr. If an HPLC procedure is running at a pressure of 3.65×108Pa  , what is its running pressure in torr?

DrBob222 · Accepted Answer

I do them this way. 3.65E8 Pa x (1 kPa/1000 Pa) = 3.65E5 kPa. Then there are 101.325 kPa in 1 atm; convert to atm. Finally there are 760 torr in 1 atm. Convert to torr.