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25g acrylic-based polymer containing 1 functional group in each molecule was dissolved in chloroform. Then it was titrated by 45 mL 0.1 M NaOH. Calculate

25g acrylic-based polymer containing 1 functional group in each molecule was dissolved in chloroform. Then it was titrated by 45 mL 0.1 M NaOH. Calculate the weight-average molecular weight of this polymer if its HI is 3.5. Discuss the accuracy of this method for the polymer indicated here

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