A sample of helium gas at 25°C is compressed from 200. cm3 to 0.240 cm3. Its pressure is now 3.00 mm Hg. What?
was the original pressure of the helium?
A. 66.7 mm Hg
B. 16 mm Hg
C. 2.50 x 10^3 mm Hg
D. 3.60 x 10^-3 mm Hg
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