For exam 2a from fall 2008 # 13, where or how do you get n2 = (14.5mols)(0.875) = 12.7mols. I get where the 14.5 mols is coming from, but where is the 0.875 come from? and how do I get to that point?
The problem states that 12.5% of the gas is lost to a leak as the balloon rises, so 87.5% of the gas remains in the balloon.
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