Final Exam Review Spring 2022

To increase the concentration of a solution, you would -

• increase the amount of solute

• increase the amount of solvent

• cool the solvent

• cool the solute

How can we increase the gas pressure inside a sealed container?

• Increase the number of particles inside the container
• Increase the temperature
• Decrease the volume of the container
• All of these

Calculate the molar mass of Ba(C₂H₃O₂)₂

• 255.3 g/mol

• 237.3 g/mol

• 228.3 g/mol

• 196.3 g/mol

How many molecules are in 9.4 moles of AlCl₃?

• 5.66
• 5.66x10²⁴
• 0.705
• 1.25x10²³

What is the percent by mass of a solution made by dissolving 20.0 g of NaCl into 180.0 g of water?

• 10.0 %

• 11.1 %

• 80.0 %

• 20.0 %

Elements in the same ________ are more chemically similar.

• group
• period
• club
• table

Which elements have the most similar chemical properties?

• K and Na
• K and Ca
• K and Cl
• K and S

Name the acid: HC₂H₃O₂

• Acetic Acid
• Acetous Acid
• Hydrogen Acetate
• Hydrogen Dicarbon Trihydrogen Dioxygen

What is the charge of phosphate?

• -1
• -3
• +1
• -2

Aluminum ion would take a charge of

• 1+
• 2+
• 3+
• 0