Express the pressure numerically 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 5.97×10^8 Pa , what is its running pressure in torr?

Answer 1

Use the conversion that 1 atm = 101.325 kPa and 1atm = 760 torr.

5.98x10⁸ Pa x 1 kPa / 10³ Pa x 1 atm / 101.325 kPa x 760 torr / atm = torr (do the math)