Solubility

Soluble

Sugar is soluble in water. Translation: Sugar dissolves in water. The solute particles are more attracted to the

solvent than they are to each other.

Examples?

Sugar is soluble in water.

Insoluble

Insoluble – not able to be dissolved in a particular solvent. Ex. Fat droplets in milk.

The solute particles are more attracted to each other than they are to the solvent.

Oil is insoluble in water.

Nail Polish

Soluble in water? Or Insoluble?

Soluble in acetone? Or insoluble?

http://www.opidiva.com/

Grass Stains

chlorophyll

http://www.abc.net.au/cgi-bin/common/printfriendly.pl?/science/features/rugby2003/default.htm

Chlorophyll (grass stains)

Soluble in water? Or Insoluble?

Soluble in rubbing alcohol? Or insoluble?

http://www.drugstore.com/qxp73865_333181_sespider/rite_aid/isopropyl_rubbing_alcohol_70.htm

Concentration

Concentrated Solution

(lots of solute)

Dilute Solution

(relatively little solute)

How do you describe what is in between?

Concentrated or Dilute?

Compared to this one…

Compared to this one…

Concentration

How do you know what to compare it to? We use numbers to describe how

concentrated or dilute something is. This is called the concentration. The concentration tells us exactly how

much solute is in a certain amount of solvent (or one tube of water).

5 4 3 2 1

“Make me a green solution with a concentration of 3.”