document.write( "Question 506537: How much 5% hcl must be mixed with 60ml of 20% hcl to get a 10% solution?\r
\n" ); document.write( "\n" ); document.write( "I think that it would just be another 60ml, but I'm not sure.
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Algebra.Com's Answer #340188 by mananth(16946)\"\" \"About 
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--------percent ---------------- quantity
\n" ); document.write( "Hcl I 20 ---------------- 60 ml
\n" ); document.write( "Hcl II 5 ---------------- x ml
\n" ); document.write( "Mixture 10 ---------------- 60 + x ml
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\n" ); document.write( "20 * 60 + 5 x = 10 ( 60 + x )
\n" ); document.write( "1200 + 5 x = 600 + 10 x
\n" ); document.write( "5 x + -10 x = 600 - -1200
\n" ); document.write( "-5 x = -600
\n" ); document.write( "/ -5
\n" ); document.write( "x = 120
\n" ); document.write( " 120 ml of 5 % Hcl II
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