Calculating the Molecular Weight of Glucose Polymers

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The discussion centers on calculating the molecular weight of a polymer formed from five glucose monomers (C6H12O6). The molecular weight of a single glucose monomer is approximately 180 g/mol. When five glucose monomers bond to form a polymer, the total would initially be 900 g/mol. However, during the condensation reaction that forms disaccharides and polysaccharides, water molecules are released. Each bond formation between glucose molecules results in the loss of a water molecule (18 g/mol). Therefore, for four bonds formed between five glucose monomers, 72 g/mol (4 x 18 g/mol) must be subtracted from 900 g/mol, leading to a final molecular weight of 828 g/mol. This aligns with option B, clarifying that the initial assumption of 900 g/mol does not account for the water loss during polymerization.
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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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