document.write( "Question 844202: How many milliliters of 40% ethyl alcohol can be prepared from 135 milliliters of 95% ethyl alcohol? Round to the nearest hundredth.\r
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document.write( "A 40% ethyl alcohol solution is used to make 250 mL of a 10% ethyl alcohol solution. Put units on your answers with no spaces.\r
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document.write( "-Determine the amount of 40% ethyl alcohol to be used.
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document.write( "-Determine the amount of distilled water to be used to bring the volume to 250mL.
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Algebra.Com's Answer #508600 by josgarithmetic(39618)![]() ![]() ![]() You can put this solution on YOUR website! The first question, making the 40% alcohol from the given 95% alcohol: \n" ); document.write( "Let v = Amount of water to use. \n" ); document.write( "Start with 135 ml. of 95% alcohol. \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The second question, making 10% alcohol from the given 40%; a little different because 40% alcohol is being used and diluted with water. The final concentration wanted is 10%, resulting in 250 ml of this 10%. \n" ); document.write( "Realize that water is 0% alcohol. \n" ); document.write( "Let w = Amount of water to use. \n" ); document.write( "Let v = Amount of 40% to use. \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Find more thorough information on these mixture problems in the lessons. \n" ); document.write( "- \n" ); document.write( "http://www.algebra.com/tutors/Two-Part-Mixture-with-one-material-quantity-unknown.lesson?content_action=show_dev \n" ); document.write( "- \n" ); document.write( "http://www.algebra.com/tutors/Mixtures%3A-All-in-Symbols.lesson?content_action=show_dev \n" ); document.write( " |