Q4 E - Chemistry (OpenStax)

Question

A typical barometric pressure in Redding, California, is about 750mm Hg. Calculate this pressure in atm and kPa.

Step-by-Step Solution

Answer

1. 750mm of Hg = 0.9868 atm.
2. 750mm of Hg = 99.99 Kpa

Step 1: Define pressure

The force applied perpendicular to an object's surface per unit area across which that force is spread is known as pressure.

Step 2: Explanation

a)Converting mm Hg pressure to atm.

1mm of Hg= 0.0013 atm.

750 mm of Hg

                 = (750) x (0.0013) atm.

                 = 0.9868 atm.

Therefore, 0.9868 atm.

b) Converting mm Hg to kPa pressure.

1mm of Hg = 0.1333 Kpa.

750 mm of Hg

                   = (750) x (0.1333) Kpa.

                   = 99.99 Kpa.

Therefore, 99.99 Kpa.