CHEMISTRY · Single correct · A Level · Chemistry · Amount of substance · Amount of substance
Problem
Four samples are analyzed for oxygen content.
• 36 g of H₂O(l)
• 44 g of CO₂(g)
• 102 g of Al₂O₃(s)
• 60 g of O₂(g)
Which ranking correctly orders the samples from greatest to least number of oxygen atoms?
(a) Al2O3>O2>H2O=CO2
(b) O2>H2O=CO2>Al2O3
(c) O2>Al2O3>H2O=CO2
(d) H2O>O2>Al2O3=CO2