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Dissolving
Solubility
Molarity
Dilution
Colligative Properties
100

In a solution, the substance that is being dissolved is the ____.

What is a Solute?

100
Solubility
What is the amount of solute that can dissolve in a given amount of solvent at a given temperature
100

The solution concentration expressed in terms of molarity

mol/L

100
When diluting a solution this does not change
What is the number of moles
100

These are the three colligative properties of solutions.

What are vapor pressure lowering, boiling point elevation, and freezing point depression?

200

This does NOT change when a solution is diluted by the addition of solvent.

What is the number of moles of solute?

200
A solution in which a small amount of solid still remains at the bottom of the solution
What is a saturated solution
200
The percent by mass of a 15.0g solution with 2.0g of HCl.
What is 13.3%
200
The concentration of a 5 mL of 2.0 mol/L solution after being diluted to 400mL
What is 0.0250 mol/L
200

This affects the colligative properties of solution and NOT the identity of the solute.

What is the number of solute particles?

300

This is the substance that dissolves the solute in solutions.

What is the solvent?

300
The description of a solution that has 120 grams of KNO3 dissolved in 150mL of water ( the solubility of KNO3 is 90g/100mL)
What is unsaturated
300

What is the molarity of a solution that contains 6 moles of solute in 2 liters of solution? M=mol/Liter

3M

300

The volume of 6.00 M HCl needed to make 319 mL of 6.80M HCl is ____.


362 mL

300

A salt is dissolved in water, which has a boiling point of 100°C. The boiling point of the solution will be

greater than 100 °C

400
the separation of ions when an ionic compound is dissolved in water
What is dissociation
400
Causes the solubility of gases to decrease and the solubility of liquids to increase
What is an increase in temperature
400
The number of moles present in a 400mL solution with a concentration of 0.157 mol/L
What is 0.0628 moles
400

How many mL of a 2.0M NaBr solution are needed to make 200.0 mL of 0.50M NaBr?

50 mL

400

Calculate the molality of formic acid in a solution containing 44 g of formic acid in 470 g of nitrobenzene. The molar mass of formic acid is 36 g/mol.  Molality=moles/kilograms.

2.6 mol/kg

500

These are examples of how to dissolve solid/liquid solutes faster.

What are agitation, temperature, and surface area?

500
A solution is at this when the rate of dissolving equals the rate of crystallization
What is equilibrium
500

What mass of Na2SO4 is needed to make 2.5 L of 2.0M solution? (Na = 23 g; S = 32 g; O = 16 g)


710 g

500

If 2.0 mL of 6.0M HCl is used to make a 500.0-mL aqueous solution, what is the molarity of the dilute solution?

0.024 M

500

A solution containing 34.2 g of cane sugar (C12H22O11) in .500 kg of an unknown solvent froze at 0.374°C. Calculate the freezing point depression constant (Kf) of the solvent. The molar mass of cane sugar is 342 g/mol. Change in temp.=Kf x m

1.87 °C/m