3.2.21 Quiz Review

3.2.21 Quiz Review

Multiple Choice

Solvation is when...?

• The solvent surrounds the solute particles

• The solvent does nothing

• The solvent pull the solute particles away

• The solute surrounds the solvent particles

Multiple Choice

The separation of molecules into smaller ions (when dissolving)

• Miscible

• Saturated

• Solvent

• Dissociation

Multiple Choice

The ability of a solute to dissolve into a solvent.

• Immiscible

• Saturated

• Dissociation

• Solubility

Multiple Choice

A substance that is not a good conductor of electricity when in solution.

• Solution

• Nonelectrolyte

• Suspension

• Colloid

Multiple Choice

Two liquids that can dissolve into one another (mix).

• Miscible

• Immiscible

• Electrolyte

• Nonelectrolyte

Multiple Choice

The substance in a solution that is dissolved into the solvent.

• Solution

• Solvent

• Solute

• Suspension

Multiple Choice

Which of the following factors affects solubility?

• temperature

• agitation

• surface area

• all of the above

Multiple Choice

In a solid to liquid mixture, an increase in temperature means...

• increase in solubility
• decrease in solubility

Multiple Choice

In a gas to liquid mixture, an increase in temperature means...

• increase in solubility
• decrease in solubility

Multiple Select

Choose the correct methods if you want to prepare a cup of coffee in a short time.

• Use cold water

• Use hot water

• Use crystal cube sugar

• Stirring the drink faster

• Use powdered sugar

Multiple Select

Choose the factors affect the rate of solubility :

• Temperature of solvent

• Surrounding temperature

• Rate of stirring

• Size of solute

• Thickness of solvent

Multiple Choice

How many moles of solute are present in 50.0 mL of 0.20M KNO₃?

• 10.0 moles solute

• 0.05 moles solute

• 1.00 moles solute

• 0.01 moles solute

Multiple Choice

If you have 0.045 L of 0.465 M potassium bromide. How many moles of potassium bromide are present?

• 20.9 mol
• 0.021 mol
• 0.02 mol
• 0.0209 mol

Multiple Choice

Calculate the molarity of the following solution:  1.0 mole of KCl in 750.0 mL of solution.

• 0.750 M
• 99 M
• 1.3 M
• 2.0 M

Multiple Choice

How many moles of NaCl are present in a solution with a molarity of 8.59 M and a volume of 125 mL?

• 1074 mol
• 0.069 mol
• 1.07 mol
• 62.7 mol

Multiple Choice

How many moles of NaCl are present in a solution with a molarity of 8.59 M and a volume of 125 mL?

• 1074 mol
• 0.069 mol
• 1.07 mol
• 62.7 mol

Multiple Choice

Which substance is MOST soluble at 0 ºC?

• KI
• NaNO₃
• NaCl
• Ce₂(SO₄)₃

Multiple Choice

What type of a solution is 260g sugar at 50ºC in 100g H₂O?

• Saturated

• Unsaturated

• Supersaturated

Multiple Choice

What type of a solution is 100g KNO₃ at 40ºC in 100g H₂O?

• Saturated

• Unsaturated

• Supersaturated

Multiple Choice

What type of a solution is 60g NaNO₃ at 40ºC in 100g H₂O?

• Saturated

• Unsaturated

• Supersaturated

Multiple Choice

At what temperature can you fully dissolve 140g of NaNO₃?

• 62

• 73

• 81

• You cannot determine this

Multiple Choice

Which solute is MOST likely a gas?

• KNO₃

• NaNO₃

• KCl

• Ce₂(SO₄)₃

Multiple Choice

How much NaBr solute is saturated at 70 degrees?

• 110

• 120

• 130

• 140

Multiple Choice

How much Ce₂(SO₄)₃ solute is saturated at 80 degrees?

• 20

• 15

• 30

• 2

Multiple Choice

How much KNO₃ solute is saturated at 40 degrees?

• 75

• 55

• 65

• 85

NEXT QUESTION IS A CHALLENGE

NOT REPRESENTATIVE OF QUIZ LIKE QUESTIONS

Multiple Choice

A saturated solution of Pb(N0₃)₂ is prepared at 20°C using 100 grams of water. As this solution is cooled to 10°C, NaN0₃ precipitates (settles) out of the solution. The resulting solution is saturated. Approximately how many grams of NaN0₃ settled out of the original solution?

• 26 grams

• 10 grams

• 55 grams

• 126 grams

Poll

After completion of this, how do you feel about the material?

• 1: I have no idea.

• 2: I have some clue, but please push the quiz back.

• 3: I feel pretty good and with more practice could be confident for quiz.

• 4: I feel great! Ready for the quiz!

Poll

After seeing all the material together, how do you feel about the quiz Wednesday?

• Feeling Good, Let's Go.

• Please review in person Wednesday instead and Quiz Thursday.

• It doesn't matter either way; I'm going to fail.