Determine the empirical formula of compound if its percentcomposition is 75 perc
ID: 679252 • Letter: D
Question
Determine the empirical formula of compound if its percentcomposition is 75 percent carbon and 25 percent hydrogen. AtomicMass C-12 H-1 and A 14.4 g sample of a compound known to contain only iron andoxygen FexOy was analyzed and found tocontain 11.2 grams of iron. Find the simplest empirical formula ofthis compound. Find X and Y. Determine the empirical formula of compound if its percentcomposition is 75 percent carbon and 25 percent hydrogen. AtomicMass C-12 H-1 and A 14.4 g sample of a compound known to contain only iron andoxygen FexOy was analyzed and found tocontain 11.2 grams of iron. Find the simplest empirical formula ofthis compound. Find X and Y.Explanation / Answer
C H 75% 25 % 75/12 25/1 6.25 25 divide with least number 6.25/ 6.25 25 /6.25 1 4 So the emperical formula of compound is CH4 part B percent of iron in the compound = (11.2 / 14.4 )x 100 = 77.7 percentof oxygen = 100-77.7 = 22.3 % Fe O 77.7 % 22.3% 77.7 /55.85 22.3 /16 1.39 1.39 1 : 1 Thesimplest emperical formula of the compound is FeO X = Y = 1 part B percent of iron in the compound = (11.2 / 14.4 )x 100 = 77.7 percentof oxygen = 100-77.7 = 22.3 % Fe O 77.7 % 22.3% 77.7 /55.85 22.3 /16 1.39 1.39 1 : 1 Thesimplest emperical formula of the compound is FeO X = Y = 1Related Questions
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