document.write( "Question 718163: I have 20% solution acetic acid [vinegar] and want to dilute it to 5% solution - how much water do I need to add to the 20% to bring it to 5% please?\r
\n" ); document.write( "\n" ); document.write( "Hope you can help me with this question.\r
\n" ); document.write( "\n" ); document.write( "Marnie\r
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Algebra.Com's Answer #440880 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
I have 20% solution acetic acid [vinegar] and want to dilute it to 5% solution -
\n" ); document.write( " how much water do I need to add to the 20% to bring it to 5%
\n" ); document.write( ":
\n" ); document.write( "You should specify how much we a dealing with here, either say the amt of 20% you have to dilute, or specify how much you want the resulting 5% solution to be.
\n" ); document.write( ":
\n" ); document.write( "Here is the simplest situation.
\n" ); document.write( "I am going to assume you have 1 qt of 20% solution, and you want to know how much water to add, to get a 5% solution
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\n" ); document.write( "Let x = amt of water required
\n" ); document.write( ":
\n" ); document.write( ".20(1) = .05(x+1)
\n" ); document.write( ".2 = .05x + .05
\n" ); document.write( ".20 - .05 = .05x
\n" ); document.write( ".15 = .05x
\n" ); document.write( "x = .15/.05
\n" ); document.write( "x = 3 qts of water should be added to the 1 qt of vinegar
\n" ); document.write( ":
\n" ); document.write( "You can change the units to pints or to gallons if it suits the situation.
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