assume temparature is constant
P1V1 = P2V2
P1 = 1.2 atm , V1 = 25.0 mL
P2 = 5.5 atm , V = ?
V2 = (P1V1 / P2)
V2 = (1.2 x 25.0 / 5.5)
V2 = 5.45 mL
answer = 5.45 mL
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