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Answer the following questions regarding the decomposition of arsenic pentafluoride, AsF5(g) . (a) A 55.8 g sample of AsF5(g) is introduced into an evacuated 10.5 L container at 105°C. (i) What is the initial molar concentration of AsF5(g) in the container? mol AsF5 = 55.8 g AsF5 ×
1 mol AsF5 = 0.328 mol 169.9 g AsF5 One point is earned for the correct molar mass. One point is earned for the correct concentration. 0.328 mol AsF5 = 0.0313 M [AsF5]i = 10.5 L (ii) What is the initial pressure, in atmospheres, of the AsF5(g) in th...
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- Fall '11