A specific linear polymer chain is formed by joining exactly repeating units. If the polymer is Poly — Polymers Chemistry Question
Question
A specific linear polymer chain is formed by joining exactly $250$ repeating units. If the polymer is Polyvinyl chloride (PVC), calculate the approximate molecular mass of this single polymer chain in atomic mass units (u).
Answer: 15625
💡 Solution & Explanation
The repeating unit of PVC corresponds to the monomer vinyl chloride ($CH_2=CHCl$). Its molecular mass is $12 (C) + 2 (H) + 12 (C) + 1 (H) + 35.5 (Cl) = 62.5$ u. For a chain of $250$ units: Mass = $250 \times 62.5 = 15625$ u.
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