SCH3U Exam Review

What is a substance that is dissolved in another substance? 

• solution
• solute
• solvent
• compound

What is a solvent?

• The substance that does the dissolving in a solution.
• The substance that is being dissolved in a solution.
• The mixing of different substances.
• The process in which neutral molecules lose or gain electrons

A solution that is considered dilute would ....

• Be dark in color

• Have a strong scent

• Have a large amount of solute

• Have a small amount of solute

How many L of a 14 mol/L solution must be used to make 250 mL of a 1.75 mol/L solution? C1V1=C2V2

• 0.031 L

• 31.3 L

• 2000 L

• 10.2 L

Which of the following bonds are soluble in water?

• polar & nonpolar covalent
• polar covalent & ionic
• nonpolar covalent & ionic
• Only ionic

Calculate the concentration of 25.0 grams of KBr dissolved in 0.750 L (hint: convert grams to moles)

• 0.280 mol/L

• 0.210 mol/L

• 33.3 mol/L

What is the concentration of a solution containing 8.0 moles of solute in 500. mL of solution?

• 0.016 mol/L

• 16 mol/L

• 62.5 mol/L

• 0.063 mol/L

Which solution is more concentrated?

• 1 mole of solute in 1 liter of solvent
  
• 3 moles of solute in 6 liters of solvent
  
• 4 moles of solute in 2 liters of solvent
  

When ions separate in an ionic compound it is called:

• Ionization

• Separation

• Dissociation

• Polymerization

A weak acid:

• Ionizes completely

• Ionizes partially

• Does not ionize

• Dissociates