Aqueous Solutions and Molarity

The _____is the part that gets dissolved. 

• solute 
• solvent 
• solution 
• Sacajawea 

A solution is a kind of ________. 

• mixture 
• compound 
• element 
• stuff 

A solution is a ________ mixture. 

• heterogeneous 
• homogeneous 
• dumb 
• mixed 

The universal solvent is ______. 

• sodium 
• acid 
• water 
• wind 

Tags

NGSS.HS-ESS2-5

When one of the parts of the solution is water we call it _________. 

• water stuff 
• water mixture 
• aqua-man
• aqueous 

This is the part of the solution that causes the dissolving to occur.

• solute

• solvent

• salt water

• the saturant

What is it about the water molecule that makes it a great solvent?

• water demonstrates polarity; a partial charge on each side of the molecule
• due to its molecular formula
• it has a liner molecular shape
• due to it's non-polar molecular structure

What is the correct formula to solve for the Molarity of a solution that has .4 moles of HCl in 9.5 L of solution?

• M = 9.5 L / .4 mol
• M₁V₁=M₂V₂
• M = .4 mol / 9.5 L
• none of the other choices

A sample of 0.0255 mol potassium hydroxide, KOH, was dissolved in water to yield 10.0 mL of
solution.  Which amount would you need to change to solve for molarity?

• change .0255 moles to grams
• change 10 mL to L
• change both values to grams and L
• leave it as it is

Tags

NGSS.HS-PS1-5

A questions asks, "what volume of 0.125 M KMnO4 is required to yield 0.180 mol of potassium permanganate,

KMnO4?" What is the correct formula set up to solve for this problem?

• M x V = #moles

• M₁ V₁ = M₂ V₂

• V x M x MM = g

• none of these choices