document.write( "Question 1133793: A chemistry experiment requires a 30% solution of sodium chloride. I have 50 milliliters of 20% solution. How many milliliters of 50% solution should I add to obtain the required 30% solution? \n" ); document.write( "
Algebra.Com's Answer #751023 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
A chemistry experiment requires a 30% solution of sodium chloride. I have 50 milliliters of 20% solution. How many milliliters of 50% solution should I add to obtain the required 30% solution?
\n" ); document.write( "------------
\n" ); document.write( "Add M mls.
\n" ); document.write( "---
\n" ); document.write( "50*20 + M*50*M = (50 + M)*30
\n" ); document.write( "---
\n" ); document.write( "Stir vigorously to keep the undissolved salt uniformly mixed.
\n" ); document.write( "
\n" );