SOLUTION: How do I dilute a 50% solution to a 25% solution

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Question 662482: How do I dilute a 50% solution to a 25% solution
Found 2 solutions by Alan3354, josmiceli:
Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website!
How do I dilute a 50% solution to a 25% solution
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50% is 1 to 1
25% is 1 to 3
Add solvent amount = total starting amount.
eg,
If you have one liter of 50%, add 1 liter of solvent.

Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website!
You can add some water, or solvent in some cases, same thing.
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In a 50% solution, you have 50% "stuff", I'll say it is antifreeze.
The other 50% I will say is water
Let = the total amount of solution you start with, in
gallons, or whatever
= amount of antifreeze
Add amount of water
Now you have amount of solution
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I can say

So, this says you add an amount of water equal to
the amount of solution you started with.
If you started with 1 gallon of solution, now you
have 2 gallons of solution and .5 gallons of antifreeze
.5 / 2 = 1/4 or 25%