Consider the following apparatus. Calculate the partial pressure of helium after the opening valve. The temperature remains constant at 16oC.

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0.164 atm

1.64 atm

0.328 atm

1 atm

answer is A.

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Detailed Solution

nHe=1.2×0.630.082×289, nNe=3.4×2.80.0821×289=0.032Pf=0.431×0.0821×2894.6=2.223PHe=0.0320.432×2.223=0.164atm

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