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A mixture contains 10% CO, 40% CO2 and 50% H2O, what is the mass percent of CO2?(a) 9.5(b) 15.4(c) 39.5(d) 74.1I have been asked this question in an international level competition.My question is based upon Analyses of Multicomponent Solutions and Mixtures topic in chapter Moles, Density & Concentration of Basic Chemical Engineering

Answer» CORRECT ANSWER is (a) 9.5

Best explanation: Mass PERCENT of CO2 = 10*28/[10*28 + 40*44 + 50*18] = 9.5%.


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