document.write( "Question 337983: How much water must be evaporated from 500 grams of a 10% salt solution
\n" ); document.write( "to obtain a 15% salt solution? \n" ); document.write( "

Algebra.Com's Answer #242319 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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How much water must be evaporated from 500 grams of a 10% salt solution
\n" ); document.write( "to obtain a 15% salt solution?
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\n" ); document.write( "Let w = amt of water to be evaporated
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\n" ); document.write( "Write an amt of salt equation (the amt remains the same, only the % changes)
\n" ); document.write( ".10(500) = .15(500-w)
\n" ); document.write( "50 = 75 - .15w
\n" ); document.write( ".15w = 75 - 50
\n" ); document.write( "w = $\"25%2F.15\"$
\n" ); document.write( "w = 166 $\"2%2F3\"$ grams to be evaporated
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\n" ); document.write( "Check: That leaves: 500 - 166.67 = 333.33 gram solution after evaporation
\n" ); document.write( ".10(500) = .15(333.33)
\n" ); document.write( "50 = 50; confirms our answer \n" ); document.write( "

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