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a polymeric organic compound has formula (C6H3) (C8H8)nBr3. if it contains 7.68% bromine, then the value of n will be (approximate)​

Answer»

polymeric organic compound has formula (C6H3) (C8H8)nBr3. To Find:If it contains 7.68% bromine, then the value of n will be (approximate)​ ?SOLUTION:since, we know that- formula of the compound = MASS % of the Br, % = 7.68%mass of Br in the compound = 240uNow, LETM = Molecular mass of the compound = 75+104 n +240 = 315+104ntherefore, 7.68% of M =240 u⇒ n ≈ 27Hence, the value of n is 27.



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