Illustrated Guide to Home Chemistry Experiments

Chapter 14 Laboratory: Gas Chemistry 259

RQEWEvI UESTIOnS

q 1 : A gas sample at a pressure of 101,325 Pa and 26.85°C has a volume of 10.00 mL. At constant volume, at what pressure would
that gas sample have a temperature of 126.85°C?

q: 2 A sample of gas at a pressure of 101,325 Pa and 26.85°C has a volume of 10.00 mL. If the temperature is increased to 126.85°C
and the volume decreased to 5.00 mL, what is the pressure of the gas sample?

TABLE 14-3:

Observe the volume-pressure relationship of gases—observed and calculated data.

Item value

A. Area of syringe bore _________ m^2

.B Mass of empty container and plunger _______.___ g

C. Initial (atmospheric) pressure __________ Pa

D. Initial volume reading ____.____ mL

E. Initial temperature reading ______.___°C

F. Final temperature reading ______.___°C

G. Mass of lead shot _______.___ g

H. Final pressure __________ Pa