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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» <html><body><p>polymeric organic compound has formula (<a href="https://interviewquestions.tuteehub.com/tag/c6h3-2013662" style="font-weight:bold;" target="_blank" title="Click to know more about C6H3">C6H3</a>) (C8H8)nBr3. To Find:If it contains 7.68% bromine, then the value of n will be (approximate)​ ?<a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a>:since, we know that- formula of the compound = <a href="https://interviewquestions.tuteehub.com/tag/mass-1088425" style="font-weight:bold;" target="_blank" title="Click to know more about MASS">MASS</a> % of the Br, % = 7.68%mass of Br in the compound = 240uNow, <a href="https://interviewquestions.tuteehub.com/tag/letm-3707231" style="font-weight:bold;" target="_blank" title="Click to know more about LETM">LETM</a> = 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.</p></body></html>


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