Calculating Mass Percentages
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Question: Calculate the mass percent of methanol, ethanol, and MTBE, that must be present in gasoline to yield a mixture of 1.8% oxygen by weight.© BrainMass Inc. brainmass.com June 7, 2023, 2:44 pm ad1c9bdddf
First, we have to figure out a ratio. Since you require 1.8% oxygen by mass, let's use 1 Kg of gasoline. In this one kilogram of gasoline we have 1000 grams. For their to be 1.8% by mass oxygen, there must be 18 g of oxygen. This means that there is 1.125 moles of oxygen needed in ...
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