Lactose

Aspartame
Sucrose
Sucralose
Saccharin
which ones of these are polar, which are non-polar? and what is the structures of them? like their O-H bonds?

i found answers to other sugars like glucose and fructose but need help for these

you can get the structure of each by googling them.

Polar or non polar? Aren't they all very soluble in water? What does that tell you?
Look at the double bonded Oxygen hanging off as in a carboxyl group hanging off. http://www.phschool.com/science/biology_place/biocoach/biokit/carboxyl.html

To determine if a molecule is polar or non-polar, we need to consider its molecular structure and the presence of polar bonds. The presence of polar bonds can lead to an uneven distribution of electron density within a molecule, resulting in a polar molecule.

1. Lactose:
Lactose is a disaccharide sugar composed of glucose and galactose. The O-H bonds in lactose are polar because oxygen is more electronegative than hydrogen. As a result, lactose is a polar molecule due to the presence of polar O-H bonds.

2. Aspartame:
Aspartame is an artificial sweetener composed of the amino acids aspartic acid and phenylalanine. Since aspartame contains polar bonds (e.g., C=O, C-N, and C-O), it is a polar molecule.

3. Sucrose:
Sucrose, commonly known as table sugar, is a disaccharide sugar composed of glucose and fructose. The O-H bonds in sucrose are polar, making it a polar molecule.

4. Sucralose:
Sucralose is an artificial sweetener derived from sucrose. During the manufacturing process, three hydroxyl groups in sucrose are replaced with chlorine atoms, resulting in a non-polar molecule. The O-H bonds in the original sucrose molecule are polar, but due to the substitution of chlorine atoms, sucralose becomes non-polar.

5. Saccharin:
Saccharin is an artificial sweetener. Its molecular structure consists of a benzene ring connected to a sulfonamide functional group. The O-H bonds are absent in saccharin, and the molecule does not contain any polar bonds. Hence, saccharin is a non-polar molecule.

It is important to note that the structures of these compounds can be visualized using chemical structure drawing software or by referring to relevant literature and sources.