Note that all ionic compounds are strong electrolytes. If it is an electrolyte, write out the ions it dissociates into. Solution: Note that Chromium (III) hydroxide is an ionic compound, so it completely dissociates into ions in aqueous solution and is thus a strong electrolyte.

Ionic compounds are electrolytes because they dissociate into ions when dissolved in water. Many molecular compounds are nonelectrolytes. Polar molecular compounds may be either strong or weak electrolytes, depending on the extent of their ionization in aqueous solution.

Every ionic compound has an energy holding the lattice structure of the compound, known as lattice energy. If the hydration energy of an ionic compound exceeds its lattice energy, the lattice is broken and the ions in the compound separate, causing the compound to dissolve.

Water

The oppositely charged ends of polar water molecules attract the ions and pull them away, resulting in dissolving. Since the ions in salt and the molecules bin sugar are very different, their solubilities tend to be different.

In this experiment, sugar should dissolve faster in solvents than salt does. The reason for this is because the sugar molecules are bigger than the ions of dissolved salt. This allows for more water molecules to surround a single particle, pulling it into solution faster.

Sugar dissolves faster in hot water than it does in cold water because hot water has more energy than cold water. When water is heated, the molecules gain energy and, thus, move faster. As they move faster, they come into contact with the sugar more often, causing it to dissolve faster.

In a solution, the solute is the substance that dissolves, and the solvent is the substance that does the dissolving. For a given solvent, some solutes have greater solubility than others. For example, sugar is much more soluble in water than is salt.

In the cold water, the particles move slower and interact at a slower rate. Therefore, the sugar cube will dissolve the slowest in the cold water.

If you use too much salt (or too little water) then you will not be able to dissolve all of it. You can add salt slowly to see approximately how much can be dissolved in a given amount of water (at a given temperature). You can dissolve more salt by adding more water or heating it up.

For example, in the salt example, the water molecules must be able to interact with each ions. Stirring exposes more of the solute, and makes more of the solute come in contact with the solvent, thus increasing the rate of dissolution.

Energy from hot water molecules makes solids more soluble. In hot water, molecules are moving around more, so there are more collisions between the water molecules and a solid. Most solids, including sugar and salt, become more soluble with increasing temperature.

There is no obvious difference between the amount of salt that dissolves in the hot water compared to the cold water. This shows that temperature affects the dissolving of sugar more than it affects the dissolving of salt.

Hot water dissolves milk powder since higher temperature can easily melt the powder and dissolve quickly. Temperature and Dissolving rate: The higher the temperature of the reactant the higher the rate of dissolving. This is the main reason why we can easily dissolve solute in hot water solvent compare to cold water.

What happens when you stir a spoonful of sugar into hot water? The sugar dissolves into the water. The water tastes sweet and may appear slightly cloudy. [You can boil or evaporate the water to see solid sugar again.]

When you stir a spoonful of sugar into a glass of water, you are forming a solution. This type of liquid solution is composed of a solid solute, which is the sugar, and a liquid solvent, which is the water. As the sugar molecules spread evenly throughout the water, the sugar dissolves.

Sugar dissolves in water at 0 degrees Celsius. This is because sugar is soluble in liquid water at all temperatures at standard pressure.

The solvent is the substance which typically determines the physical state of the solution (solid, liquid or gas). The solute is the substance which is dissolved by the solvent. For example, in a solution of salt and water, water is the solvent and salt is the solute.

Sugar and lemon juice are solutes. A solute is matter that dissolves in a solvent. The solvent is often a liquid, such as water.

Solvent is, in simplest terms, something in which you dissolve another substance (also called as solute) and this mixture will yield what we know as a ‘solution’. Some examples of solvents are water, ethanol, toluene, chloroform, acetone, milk, etc. Examples of solutes include, sugar, salt, oxygen, etc.

There can only be one solvent in a solution, but there can be many solutes. Soda pop is a good example – the solvent is water and the solutes include carbon dioxide, sugar, flavorings, caramel color etc.