Preparing Solutions

A student is preparing solutions for a laboratory experiment by dissolving solid solutes in liquid solvents. Which action will increase the rate of solubility

• lowering the temperature of the solvent

• stirring the solute in the solution

• increasing the pressure on the solution

• increasing the particle size of the solute

Which sweet tea would you expect to taste the sweetest?

• 1M
• 3M
• 3.1M
• 2.5M

Tags

NGSS.HS-PS1-5

What is the formula for molarity?

• moles/grams
• moles/kilograms
• moles/milliliters
• moles/liters

Tags

NGSS.HS-PS1-5

How many L are required to make 3.5 M hydrochloric acid using 1.1 moles? 

• 3.18 L
• 0.31 L
• 3.85 L
• 4.6 L

Which would NOT increase the rate at which a sugar cube dissolves?

• Reducing the amount of solvent

• Crushing the sugar cube

• Stirring the solution

• Heating the solvent

A solution is a ________ mixture. 

• heterogeneous 
• homogeneous 
• dumb 
• mixed 

When Koolaid mix is light colored and tastes watery it is a _______ solution.

• saturated 
• diluted

Calculate the molarity of a solution prepared by dissolving 78.2 grams of CaCl₂ in 500.0mls of water

• 0.156 M
• 0.709 M
• 0.353 M
• 1.41 M

How many grams of solute are dissolved in 125.0 mL of 5.00 M NaCl?

• 0.625 g NaCl

• 625 g NaCl

• 36.56 g NaCl

• 0.04 mol NaCl

Find the molarity of 186.55 g of sucrose (C₁₂H₂₂O₁₁) in 250 mL of water.

• 2.18 M

• 0.746 M

• 1.18 M

• 0.545 M