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General Info
Solubility
Heterogeneous Mixtures
Colligative Properties
Molarity
100
What is a solution?
a homogeneous mixture
100
What is a solubility curve?
A graph where the line depicts a saturated solution for a certain amount of solute in a solvent at a particular temperature
100
What is a heterogeneous mixture? Are solutions heterogeneous mixtures?
A mixture that consists of two or more substances in distinct phases, solutions are not heterogeneous mixtures
100
What is a colligative property?
A property that depends only on the number of solute particles (concentration) and not on their identity
100
What is molarity?
the concentration of a solution (expressed by number of moles per L of solution)
200
What is the term for substance being dissolved?
solute
200
What is the general rule for whether something will dissolve in something else?
Like dissolves like
200
What is a suspension?
a mixture containing particles that settle out if left undisturbed
200
Is the freezing point of a solution lower or higher than the freezing point of the pure solvent?
lower- freezing point depression
200
What are three reasons why molarity is important?
correct drug dosages, pesticides, food additives, drinking and driving, and of course chemistry class
300
What is the term for the substance doing the dissolving?
solvent
300
As temperature increases, what happens to the solubility of a gas?
It decreases (opposite for solids in liquids)
300
What is a colloid?
A heterogeneous mixture of intermediate size particles (not quite as small/disolved as a solution, but not as large as in a suspension)
300
Is the boiling point of a solution higher or lower than the boiling point of the pure solvent?
higher-boiling point elevation
300
What are the correct units to express molarity?
number of moles and volume in Liters
400
Give in example of an immiscible solution.
oil and water
400

Name 3 factors that affect the rate of solvation.

temperature, stirring, surface area

400
What type of mixture would sand in water be?
suspension
400
Does a solution that contains a (nonvolatile) solute have a lower or higher vapor pressure than the pure solvent?
lower-vapor pressure lowering
400
How many grams are in one mole of NaCl?
58.45g
500
Explain the differences between unsaturated, saturated, and supersaturated solutions.
unsat-can dissolve more sat-has dissolved all that is possible for a specific solution/temp. supersat-a temporary and unstable scenario where more is dissolved than normally possible
500

What happens when an ionic compound is dissolved in water? What about when a covalent compound is dissolved in water?

An ionic compound dissociates into its ions while a covalent compound dissolves but only into its molecules (does not separate further)

500
What type of mixture would milk or blood be?
colloid
500
What colligative property explains why we put salt on icy roads? Would NaCl or CaCl2 be a better salt for putting on icy roads?
freezing point depression, CaCl2
500

5.00 g KOH is dissolved in 250 mL of water, calculate the molarity

0.356M