The polarity or ionic property of a compound determines its ability to dissolve in water. Water is a polar molecule and transmits a partial positive and negative charge between its atoms, enabling it to easily dissolve other ions and polar molecules.Continue Reading
When added to water, the molecules of polar or ionic compounds break up into ions and form hydrogen bonds with water. The water molecules then create a sphere of hydration around these individual ions and keep them dispersed.
In contrast, nonpolar compounds are hydrophobic and repel water molecules. The hydrogen bonding pattern of the water shifts to create a clathrate around the hydrophobic compound. This cage-like structure prevents the substance from dissolving.Learn more about Solutions & Mixtures
Ammonium nitrate dissolves in water with an endothermic reaction, a chemical reaction that consumes heat rather than releasing it. The temperature of the solution is lower than the starting temperature of either component chemical. Ammonium nitrate's solubility increases as the water temperature rises.Full Answer >
Salt dissolves faster in water than it does in baking soda. Salt and water have a similar polarity to water, which generally increases dissolution speed.Full Answer >
Acetone dissolves in water, and there is minimal chemical reaction involved. As acetone is dissolved in water, hydrogen bonds form between the molecules of water and acetone. The hydrogen bonds are what keeps the acetone dissolved in the water.Full Answer >
An equal amount of salt in hot and cold water dissolves at about the same speed. However, the same amount of sugar added into hot and cold water dissolves faster in the hot water than in the cold water.Full Answer >