document.write( "Question 484749: How much water evaporated from 90 mg of a 2% salt solution to produce a 3% salt solution? \n" ); document.write( "
Algebra.Com's Answer #331720 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! How much water evaporated from 90 mg of a 2% salt solution to produce a 3% salt solution? \n" ); document.write( ": \n" ); document.write( "Let x = amt of water required to evaporate \n" ); document.write( ": \n" ); document.write( "Write an amt of salt equation, amt remains the same only the per cent changes \n" ); document.write( ": \n" ); document.write( ".02(90) = .03(90-x) \n" ); document.write( "1.8 = 2.7 - .03x \n" ); document.write( ".03x = 2.7 - 1.8 \n" ); document.write( ".03x = .9 \n" ); document.write( "x = \n" ); document.write( "x = 30 mg of water has to evaporate \n" ); document.write( " |