A balloon contains 5L of oxygen at a pressure of 90 kPa. How much oxygen will the ballon contain if the pressure is lowered to 67 kPa.

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08-02-2018
Chemistry

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A balloon contains 5L of oxygen at a pressure of 90 kPa. How much oxygen will the ballon contain if the pressure is lowered to 67 kPa.

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Hiiii a little help here plz !!!!

superman1987 superman1987 · Answer 1 · 2018-02-14T21:13:44+01:00

superman1987 superman1987

14-02-2018

1- According to this formula:
P1V1 = P2V2

2-By converting P from KPa to atm:
1 KPa = 0.00986923267 atm
So,
P1= 0.888231 atm
P2 = 0.661239 atm

by substitution on the previous formula:
P1V1 = P2V2
0.888231 x 5 = 0.661239 x V2
So,
V2(for the oxygen will the ballon contain) = 6.7 L

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