Asked by Louis

Helium gas is added to a 2.00 L container at 23 degrees Celsius containing Neon and Argon with a pressure of 725.3 mm Hg, what is the mass of Nitrogen added if the pressure is increased by 50%.
Answered by DrBob222
Use PV = nRT and solve for n with the original mixture of Ne and Ar. Then use PV = nRT with P increased by 50% and solve for n.
n2 - n1 = moles N2 added.
n = grams/molar mass. Solve for grams.
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