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A mixture of 20% neon, 26% argon, and 54% helium has a total mass of 23.0147...

A mixture of 20% neon, 26% argon, and 54% helium has a total mass of 23.0147 grams and occupies a 15 L tank at 277 K. a) Determine the total number of mol of this mixed gas. ____________ b) Determine the absolute pressure of the mixed gas inside the tank. ____________ You may reference the periodic table for relevant data pertaining to neon gas which is monoatomic, argon gas which is monoatomic, and helium gas which is monoatomic .

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