Using C1V1=C2V2
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Transcript Using C1V1=C2V2
Using C1V1=C2V2
What do all those things stand for?
C1= concentration 1
V1= volume 1
C2= concentration 2
V2= volume 2
So when do we use it?
We need to make solutions from stock solutions.
Example
We need to make a 1x concentration of stain but it comes as a
10x concentration. We know we need 250 ml of the 1 x
solution for the experiment.
How do we figure it out?
Fill in what we know:
C1- 1ox
V1-?
C2- 1x
V2- 250 ml
Now set it up
10(V1)=(1)(250ml)
Now do the math!
10(V1)=(1)(250ml)
Now do the math!
10(V1)=(1)(250ml)
10v1=250 ml
10
10
Now do the math!
10(V1)=(1)(250ml)
10v1=250 ml
10
10
V1= 25 mL
So now how do we make it…
1st we need to figure out the difference between how
much we want at the end and how much of our stock
we are adding so…
250 ml- 25 ml= 225 ml
(V2)
(V1)
The Steps
Obtain 25 ml of Stock Solution and bring to volume
by adding 225 ml of water.
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