Neco 2018 Chemistry Question 7
Practice objective / multiple choice question 7 from the 2018 Neco Chemistry examination.
A polymer is dissolved in benzene (\(K_f = 5.12\) °C·kg·mol\(^{-1}\)). When 5.80 g of the polymer is added to 100 g of benzene, the freezing point of the solution is lowered by 0.512 °C. If the monomer unit has a molar mass of 58 g·mol\(^{-1}\), calculate the number‑average degree of polymerisation (DP\(_n\)).
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About This Question
This is Neco 2018 Chemistry Question 7. It is one of the objective questions from the 2018 Neco Chemistry examination.
Difficulty level: Hard .
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