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Homework Statement
Do all polar substances dissolve in water?
Homework Equations
None.
The Attempt at a Solution
I think the answer is yes.
No, not all polar substances dissolve in water. While water is known as the "universal solvent" because of its ability to dissolve many substances, there are some polar substances that do not dissolve in water.
Polar substances dissolve in water because of the polarity of both the substance and water molecules. Water is a polar molecule, meaning it has a slightly positive and slightly negative end. When a polar substance is introduced to water, the polar ends of the substance are attracted to the opposite charges of the water molecules, causing the substance to dissolve.
Many polar substances dissolve in water, including sugars, alcohols, and organic acids. However, the strength of the polarity and the size of the molecule can also affect its solubility in water.
No, nonpolar substances do not dissolve in water. This is because nonpolar substances do not have a charge and are not attracted to the polar charges of water molecules. Instead, they tend to clump together and float on the surface of water.
Yes, there are some exceptions to this rule. Some polar substances may have a strong enough polarity to overcome the hydrogen bonds between water molecules and not dissolve, while some nonpolar substances may have a small enough size to dissolve in water. Additionally, temperature and pressure can also affect the solubility of substances in water.