Question

A sample of oxygen gas has volume 150.0 mL, at 0.947 atm, what will be the volume of the gas at 750.12 mm of Hg if temperature remain constant.

Answer 1

143.9 mL

Step-by-step explanation:

Applying,

PV = P'V'................. Equation 1

Where P = Initial pressure, V = Initial Volume, P' = Final pressure, V' = Final volume.

Make V' The subject of equation 1

V' = PV/P'............. Equation 2

From the question,

Given: P = 0.947 atm, V = 150 mL, P' = 750.12 mm of Hg = (750.12/760) = 0.987 atm,

Substitute these values into equation 2

V' = (0.947×150)/0.987

V' = 143.9 mL