Separation Science
This technique uses a porous barrier to separate a solid from a liquid.
What is Filtration?
A heterogeneous mixture containing particles that settle out if left undisturbed.
What is a Suspension?
This concentration measure is defined as the moles of solute per liter of solution.
What is Molarity?
This three-word rule describes the general action of dissolving (e.g., polar dissolves polar).
What is "Like dissolves like"?
These properties depend on the collection (concentration) of solute particles, not their identity.
What are Colligative Properties?
A physical separation technique that uses different boiling points to separate two liquids.
What is distillation?
These mixtures have intermediate-sized particles (1nm to 1000nm) that do not settle out.
What are Colloids?
This measure is the number of moles of solute per kilogram of solvent.
What is Molality?
Term used for two liquids that are soluble in each other in any proportion.
What is Miscible?
This value decreases as more solute particles are added to a solution.
What is Vapor Pressure?
This technique results in the formation of pure solid particles from a solution containing the dissolved substance.
What is Crystallization?
The erratic movement of colloid particles that prevents them from settling to the bottom.
What is Brownian Motion?
The formula (mass of solute / total mass of solution) x 100 calculates this percentage.
What is Percent by Mass?
A solution that contains the maximum amount of dissolved solute for a given temperature and pressure.
What is a Saturated solution?
The boiling point of a dissolved substance is always higher than that of a pure substance, a phenomenon known as this.
What is Boiling Point Elevation?
The process in which a solid changes directly to a gas without ever becoming a liquid.
What is Sublimation?
This effect is seen when colloid particles disperse light as it passes through the mixture.
What is the Tyndall Effect?
The ratio of moles of one substance to the total moles of all substances in the mixture.
What is Mole Fraction?
Name three factors that can increase the speed at which a solute dissolves.
What are Agitation, Surface Area, and Temperature?
The diffusion of a solvent through a semipermeable membrane.
What is Osmosis?
A method that separates components of a mixture based on the different rates they move through a medium.
What is Chromatography?
A type of suspension that acts like a solid when still but flows like a liquid when stirred.
What is Thixotropic?
This is the process of decreasing the concentration of a "stock" solution by adding more solvent.
What is Dilution?
This law states that the solubility of a gas is directly related to the pressure above the liquid.
What is Henry's Law?
This property explains why adding salt to ice makes the mixture colder than 0°C
What is Freezing Point Depression?