The molecular formula for glucose is C6H12O6. What would the molecular formula for a molecule made by linking three glucose molecules together by dehydration reactions be?

Md Ariful Islam

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Md Ariful Islam

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since this is a dehydration reaction, it means that when two molecules are linked together, there will be one molecule of water $H_2O$ removed.

Therefore, the molecular formula will be $C_18H_32O_16$.

The reaction will be:
$C_6H_11O_5-underbrace(OH+H)_(color(blue)(H_2O))-C_6H_10O_5-underbrace(OH+H)_(color(blue)(H_2O))-C_6H_11O_6->C_18H_32O_16+color(blue)(2H_2O)$

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