whats the 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 ) to about 60,000  (60,000,000 ). It is often convenient to know the pressure in torr. If an HPLC procedure is running at a pressure of 4.69×10⁸  , what is its running pressure in torr?

Answer 1

1 atm = 101.325 kPa, which also means 1 atm = 101,325 Pa

1 atm also is 760 torr, so if you want to convert Pa to torr then use this:

760 torr = 101,325 Pa

4.69 x 10⁸ Pa x (760 torr / 101,325 Pa) = 3.52 x 10⁶ torr

Hope that helps!

Answer 2

This is a conversion you can Google so I'm not sure if there's more behind it or not. 1 torr equals approx 133.3224 pascals so using standard unit conversion practices:

Answer 3

Hello Daniela!

The conversion rule is:

760 torr = 1atm = 101325 Pa

Therefore the answer you are looking for is:

(4.69 x 10⁸/101325)*760 = 3.52 x 10⁶ torr

I considered the number you gave is in Pa