What is a solution? A homogeneous mixture composed of only one phase.
Solute: The thing that is dissolved
Solvent: The thing that does the dissolving
Ex: Sugar water
Solute: The thing that is dissolved
Solvent: The thing that does the dissolving
Ex: Sugar water
What is a suspension?
A suspension is a heterogeneous mixture that settles
Ex: Sand in water
A suspension is a heterogeneous mixture that settles
Ex: Sand in water
What is the Tyndall effect?
The Tyndall effect is an experiment where you attempt to shine a light through a liquid. If you can see the light than the liquid is either a colloid or a suspension. This test is used to rule out solutions because solutions do not exhibit the Tyndall effect.
The Tyndall effect is an experiment where you attempt to shine a light through a liquid. If you can see the light than the liquid is either a colloid or a suspension. This test is used to rule out solutions because solutions do not exhibit the Tyndall effect.
When writing a hydrate formula, use a dot to connect the chemical formula of the compound and the number of water molecules per unit
Ex: CuSo4.5H20 - Copper(11) Sulfate pentahydrate
Ex: CuSo4.5H20 - Copper(11) Sulfate pentahydrate
Vocab:
Surface tension-the inward force, or pull, that tends to minimize the surface area of a liquid
Surfactant- any substance that interferes with the hydrogen bonding between water molecules and thereby reduces surface tension
Aqueous Solution-water that contains dissolved substances
Solvation-the process by which the positive and negative ions of an ionic solid become surrounded by solvent molecules
Electrolyte-a compound that conducts an electric current when it is in an aqueous solution or in the molten state
Nonelectrolytes- a compound that does not conduct an electric current in either aqueous solution or the molten state
Strong electrolyte-a solution in which a large portion of the solute exists as ions
Weak electrolyte-a solution that conducts electricity poorly because only a fraction of the solute exists as ions
Hydrate-a compound that contains water of hydration
Brownian motion-the chaotic movement of colloidal particles
Emulsion-a colloidal dispersion of a liquid in a liquid
Surface tension-the inward force, or pull, that tends to minimize the surface area of a liquid
Surfactant- any substance that interferes with the hydrogen bonding between water molecules and thereby reduces surface tension
Aqueous Solution-water that contains dissolved substances
Solvation-the process by which the positive and negative ions of an ionic solid become surrounded by solvent molecules
Electrolyte-a compound that conducts an electric current when it is in an aqueous solution or in the molten state
Nonelectrolytes- a compound that does not conduct an electric current in either aqueous solution or the molten state
Strong electrolyte-a solution in which a large portion of the solute exists as ions
Weak electrolyte-a solution that conducts electricity poorly because only a fraction of the solute exists as ions
Hydrate-a compound that contains water of hydration
Brownian motion-the chaotic movement of colloidal particles
Emulsion-a colloidal dispersion of a liquid in a liquid