Textbook Question
Butane, the fuel used in disposable lighters, has the formula C4H10. The carbon atoms are connected in the sequence C-C-C-C, and each carbon has four covalent bonds. Draw the structural formula of butane.
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Ch.23 - Organic and Biological Chemistry
Chapter 23, Problem 7
What is the structural difference between an aldose and a ketose?
Verified step by step guidance1
Step 1: Understand the basic structure of carbohydrates, which are organic molecules composed of carbon (C), hydrogen (H), and oxygen (O) atoms, typically in a ratio of 1:2:1.
Step 2: Recognize that both aldoses and ketoses are types of monosaccharides, which are the simplest form of carbohydrates.
Step 3: Identify that the key structural difference between an aldose and a ketose lies in the location of the carbonyl group (C=O).
Step 4: Note that in an aldose, the carbonyl group is located at the end of the carbon chain, making it an aldehyde group (R-CHO).
Step 5: Observe that in a ketose, the carbonyl group is located within the carbon chain, making it a ketone group (R-CO-R').
Related Practice
Open Question
What is the difference between a straight-chain alkane and a branched-chain alkane?
Open Question
How many dienes (compounds with two double bonds) are there with the formula C5H8? Draw as many structures as you can.
Open Question
Spermaceti, a fragrant substance isolated from sperm whales, was a common ingredient in cosmetics until its use was banned in 1976 to protect the whales from extinction. Chemically, spermaceti is cetyl palmitate, the ester of palmitic acid with cetyl alcohol (the straight-chain C16 alcohol). Show the structure of spermaceti.
Open Question
If the sequence T-A-C-C-G-A appeared on one strand of DNA, what sequence would appear opposite it on the other strand?
Textbook Question
Convert the following model into a condensed structure and line drawing. Draw the structures of two isomeric compounds.
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