A sample of chlorine gas contracts from 550 mL to 376 mL when it is cooled from 63 °C to 12 °C. If the initial pressure of the chlorine was 725 torr, what is the final pressure of the chlorine?

Question

Chemistry

Ross Washington

21 March, 05:10

A sample of chlorine gas contracts from 550 mL to 376 mL when it is cooled from 63 °C to 12 °C. If the initial pressure of the chlorine was 725 torr, what is the final pressure of the chlorine?

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Carter Foster · Answer 1

We need to use the ideal gas formula. P1V1/T1 = P2V2/T2

P1 = 725 torr

V1 = 550 mL

T1 = 63 C = 336 K

P2 = ?

V2 = 376 mL

T2 = 12 C = 285 K

(725 x 550) / (336) = (P2 x 376) / (285K)

1190 = P2 x 1.32

P2 = 900 torr