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If the following molecule is a carbohydrate, what is the value of X? C(10)H(x)O(8)? need to know fast.?

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  • If the following molecule is a carbohydrate, what is the value of X? C(10)H(x)O(8)? need to know fast.?


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Answer #1 | 14/01 2014 09:46
A monosaccharide has the empirical formula CH2O - C6H12O6, C5H10O5, etc. If this molecule were a monosaccharide, its formula would be C10H20O10. But instead it has 10 C atoms, but only 8 O atoms. Therefore, it must be a polymer that has lost 2 O atoms in the process of polymerization, which means it has lost 2 H2O molecules - because polymerization is a dehydration reaction. So a carbohydrate polymer no longer has the CH2O ratio of atoms. Therefore, since 2 O atoms have been lost during polymerization, 4 H atoms must have also been lost, and instead of 20 H atoms, the polymer now has only 16.
Positive: 50 %
Answer #2 | 14/01 2014 09:22
16
Positive: 50 %

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