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The volume of a sample of hydrogen gas was decreased from 14.39 L14.39 L to 7.68...

The volume of a sample of hydrogen gas was decreased from 14.39 L14.39 L to 7.68 L7.68 L at constant temperature. If the final pressure exerted by the hydrogen gas sample was 6.24 atm,6.24 atm, what pressure did the hydrogen gas exert before its volume was decreased?

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Answer #1

By ideal gas equation

PV=NRT

At constant temperature

P1V1=P2V2

P1=?

V1=14.39 L

V2=7.68 L

P2=6.24 Atm

Put value

14.39 P1=7.68×6.24

P1=3.33 atm

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