Mole ConceptMedium
Question
A quantity of 10 g of a hydrocarbon exactly requires 40 g oxygen for complete combustion. The products formed are CO2 and water. When CO2 gas formed is absorbed completely in lime water, the mass of solution increases by 27.5 g. What is the mass of water formed simultaneously in the combustion?
Options
A.22.5 g
B.27.5 g
C.50 g
D.10 g
Solution
Mass of CO2 formed = 27.5 g
From mass conservation, mass of water formed = 10 + 40 - 27.5 = 22.5 g
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