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 60,000kPa (60,000,000Pa ). It is often convenient to know the pressure in torr. If an HPLC procedure is running at a pressure of 5.10×10^8 , what is its running pressure in torr?

Answer 1

Assuming it's in Pa since it's so large. There are 101.325 kilo pascals per 760torr there fore\[5.10x10^8Pa \times {1kPa \over 1000Pa} \times {760torr \over 101.325kPa}= \]