document.write( "Question 73141: How many kg of water must be evaporated from 50kg of a 10% salt solution to obtain a 15% salt solution?\r
\n" ); document.write( "\n" ); document.write( "This was given to me out of a GEPA math tutorial book.
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Algebra.Com's Answer #52392 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
How many kg of water must be evaporated from 50kg of a 10% salt solution to obtain a 15% salt solution?
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\n" ); document.write( "Amt of water in 10% solution = 0.90*50kg = 45kg
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\n" ); document.write( "Let amt of water evaporated be \"x\" kg.
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\n" ); document.write( "Amt of water in 15% solution = 0.85(50-x)=(42.5-0.85x)kg
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\n" ); document.write( "EQUATION:
\n" ); document.write( "water - water = water
\n" ); document.write( "45 - x= 42.5-0.85x
\n" ); document.write( "2.5=0.15x
\n" ); document.write( "x= 6 2/3 kg (amt of water that must be evaporated)\r
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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