DILUTIONS!. Mix 2 solutions together… …they both get diluted. It’s ping pong balls in a bucket…

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Presentation transcript:

DILUTIONS!

Mix 2 solutions together… …they both get diluted. It’s ping pong balls in a bucket…

5 gallon bucket - Ping pong ball

5 gallon empty bucket - 5 Ping pong ball

Add 1 gallon of water What’s the “concentration of ping pong balls”? 5 PPB/gallon!

Add another gallon of water

5 gallon bucket - Ping pong ball

5 gallon empty bucket Add 5 ping pong balls and 2 baseballs.

Add 1 gallon of water What’s the “concentration of ping pong balls”? 5 PPB/gallon! What’s the concentration of baseballs? 5 BB/gallon

Add another gallon of water

If they are different molecules… The concentration gets calculated separately!

Suppose I have 2 Buckets!

Add 1 gallon of water 2 BB in 1 gallon of water! 2 BB/gal

Add 2 gallon of water 5 PPB in 2 gallons of water 2.5 PPB/gal

Suppose I mix the two bukets

And what if the objects are the same? They just add together!

Add 2 gallon of water 5 PPB in 2 gallons of water 2.5 PPB/gal

Add 2 gallon of water 3 PPB in 2 gallons of water 1.5 PPB/gal

Suppose I mix the two bukets

Same with chemical solutions… EXCEPT it’s usually Liters (or mL) of solvent… And it is MOLES! MOLES! MOLES! of solute

PING PONG BALLS IN A BUCKET!