Unit Review: Solutions

Which of the following would DECREASE the concentration/molarity of a solution?

• Decreasing the amount of solvent
• Increasing the amount of solute
• Decreasing the amount of solute
• Decreasing both the solute and solvent proportionally

Molarity is the ratio between moles and ____. 

• Grams
• Liters
• atoms
• milliliters

An indicator is used to identify a substance ____________________

• as an acid or base based on temperature
• as ionic or covalent based on temperature
• as ionic or covalent based on color change
• To identify a substance as an acid or base based on color change

A substance that has a SOUR taste would likely have a pH value of ____.

• 3
• 7
• 10
• 13

What is the pH range of acids?

• Less than 7
• 0-14
• Greater than 7
• 6 to 8

What is the pH range of bases

• Less than 7
• 0-14
• Greater than 7
• 6 to 8

What are the products of a neutralization reaction?

• acid
• base
• salt
• water

Which of the following has a pH greater than 7?

• HBr
• NaCl
• NaOH
• HCl

10 moles of NaCl is added to 5 liters of water. Calculate its molarity.

• 2 M
• 0.5 M
• 50 M
• 5 M

Which of these are bases?

• Lemon juice
• soap
• baking soda
• vinegar