Calculating the Molecular Weight of Glucose Polymers

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Discussion Overview

The discussion revolves around calculating the molecular weight of a polymer formed from glucose monomers, specifically focusing on a polymer made from 5 glucose units. The conversation includes considerations of disaccharides and the implications of condensation reactions in polymer formation.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant proposes that the molecular weight of a polymer made from 5 glucose monomers could be approximately 900.
  • Another participant suggests that the correct answer might be 828, indicating a need to account for the loss of water molecules during the formation of the polymer.
  • A later reply questions whether the specific type of polymer is cellulose, noting that this might involve more than just 5 monomers and emphasizing the importance of subtracting the molar mass of water in the calculation.
  • There is uncertainty about the necessity of identifying the polymer as cellulose, with some participants suggesting that the concept of condensation is relevant regardless of the specific polymer type.

Areas of Agreement / Disagreement

Participants express differing views on the correct molecular weight and the implications of polymer type, indicating that multiple competing views remain without a consensus.

Contextual Notes

The discussion does not resolve the assumptions regarding the specific polymer structure or the exact calculations involved in determining the molecular weight, leaving some mathematical steps and definitions unclear.

doc.madani
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Glucose (C6H12O6) is a monomer that can form naturally occurring polymers.
What would be the approximate molecular weight of a polymer made from 5 glucose monomers?

a) 810
b) 828
c) 882
d) 900

i said D, but my friend in convincing me its B :S
 
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What happens when two glucose molecules bond together to form a disaccharide?
 
is it cellulose, in which the water molecules are condensed out. therefore you will need to subtract the molar mass of the water molecules from 900 ? hence the answer is B ??
 
Well, I'm not sure that it's necessary cellulose (which to me is a specific condensation, and perhaps more than 5 monomers), but yes, that's the idea.
 

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