Molarity and 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

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

How many liters would you need to make a 1 M solution if you have 6 mol of Sodium Hydroxide? 

• 2
• 3
• 4
• 6 

Which sweet tea would you expect to taste the sweetest?

• 1M
• 3M
• 3.1M
• 2.5M

Tags

NGSS.HS-PS1-5

What is the molarity of 3 mole of hydrochloric acid in 3 L of water. 

• 3
• 1
• 6
• 9

The ___ is the thing being dissolved

• solute
• solvent

True or false? Insoluble means that two substances can dissolve in one another.

• true
• false

What is the formula for molarity?

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

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

Tags

NGSS.HS-PS1-7

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

Tags

NGSS.MS-PS1-4

You can make a solute dissolve more quickly in a solvent by

• adding more solute.

• adding ice.

• heating the solvent.

• removing some solvent.

Tags

NGSS.HS-PS1-5