What would be the molecular formula of a monosaccharide characterized as an aldopentose?

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Welcome back, everyone determine the chemical formula or a carbohydrate classified as keto that throws. Now, according to the context of the problem, we know that this is a carbohydrate. This is number one. And we also know that its classification is keo tros. Now, if we look at those two facts, if it is a carbohydrate, then the general formula would be C h2o M times. What do we know from the second fact, it's a keto that throws keto means that it has a ketone functional group which is carbona bonded to two carbons, right? Because sometimes we can have Aldo which corresponds to an aldehyde. And we also know that it's tetro, let's recall that tetra as a prefix means four. And essentially it tells us that there are a total of four carbon atoms. We want to combine everything together. We know the molecular formula, the general molecular formula, we know that it contains a ketone functional group. This is not really useful or basically not required, right? The most important thing is to understand that we must have more carbon atoms. So if we expand the general formula that would be CNH two non and if there are four carbon atoms, then N is equal to four, we want to substitute four for every M. So we get C four, age two, multiplied by four, just eight and OM which gives us 04. So the molecular formula or a carbohydrate classified as keto tetro would be C 4h 804. That's our final answer. Thank you for watching.

What would be the molecular formula of a monosaccharide characterized as an aldopentose?

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Key Concepts

Monosaccharides

Aldoses

Pentoses