Answer
V2 = 20 mL
Work Step by Step
P1 = 710 mmHg, V1, 21 mL, T1 = 22.3 + 273.15 = 295.4 K, P2 = 740 mmHg, T2 = 26.5 + 273.15K = 299.65K
V2 = P1V1T2/ P2 T1
V2 = 710 x 21 x 299.65 / 740 x 295.4 = 20 mL
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