AP Chem Unit 3 Vocab

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

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

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

Tags

NGSS.HS-PS1-3

Loose ions, in solution, that have a charge (like in Gatorade) are called...

• Powerade

• aqueous solutions

• electrolytes

Tags

NGSS.HS-PS1-5

Weak electrolytes are...

• compounds that break apart completely into ions and conduct electricity very well.

• compounds that do not break apart completely into ions and do not conduct electricity very well.

• compounds that break apart completely into ions, but DO NOT conduct electricity very well.

• compounds that do not break apart completely into ions, but DO conduct electricity very well.

__________ electrolytes only break apart partly and conduct electricity a little bit.

• Strong

• Weak

• Acid

• non

Substances that do not conduct electricity at all in a solution are called_______________.

• acid

• science

• nonelectrolytes

A(n) _____ solution has a large amount of solute dissolved in it.

• dilute

• concentrated

• supersaturated

• Concentrated

The density of 200 mL of water was determined, and then 20 grams of sugar was dissolved in the water. The student determined the density of the sugar-water solution and recorded the collected data in a table. The sugar in this investigation is

• the solute

• undergoing chemical change

• the solvent

• changing from a solid to a gas

What do molarity and molality have in common?

• Both have "moles solute" in the numerator

• Both have "kg solvent" in the denominator

• Both have "L solution" in the denominator

• Both have "moles solution" in the denominator

Which equation is used to find molarity?

• Moles solute/L solution

• Moles solute/kg solution

• Moles solute/kg solvent

• Grams solute/L solution