document.write( "Question 773513: if 5% salt in 6 litre water,then how many % of salt in 5 litre water
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Algebra.Com's Answer #471682 by KMST(5328) $\"\"$ $\"About$

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This is a strange, confused question.
\n" ); document.write( "I am not sure if you are repeating a trick question you were asked,
\n" ); document.write( "or if you are trying to find the solution to a problem that you did not manage to describe properly.
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\n" ); document.write( "A 5% solution contains 5 parts of the solute (the stuff that is dissolved) in a solvent (maybe water) to obtain 100 parts of solution.
\n" ); document.write( "Since a solution is by definition a homogeneous mixture, its composition will be the same throughout the solution.
\n" ); document.write( "That means that the proportions between the amounts of solute, solvent, and solution will be the same in any portion of the solution you take, be it a 6 liter portion, a 5 liter portion, or a 0.1 liter portion.
\n" ); document.write( "So 6 liters of your solution will also contain 5% salt.
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\n" ); document.write( "Six liters (6 L) of a solution containing 5 grams of salt per 100 milliliters of solution (5% w/v) would contain $\"5%2A6=30\"$ grams of salt.
\n" ); document.write( "Five liters (5 L) of a solution containing 5 grams of salt per 100 milliliters of solution (5% w/v) would contain $\"5%2A5=25\"$ grams of salt.
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\n" ); document.write( "NOTE:
\n" ); document.write( "The percentage concentration may be calculated weight-in-weight, abreviated w/w, and in that case it would mean 5 gram salt per 100 grams solution.
\n" ); document.write( "It could also be calculated as weight-in-volume, abreviated w/v, and in that case it would mean 5 gram salt per 100 milliliters solution.
\n" ); document.write( "It is usually not calculated as 5 parts of salt mixed with 100 parts of water.
\n" ); document.write( "If you dissolve 5 grams o salt (sodium chloride) in 100grams (which is 100 milliliters) of water, you will have 105 grams of a solution with a density of 1.03 grams per milliliter, and a total volume of 102 milliliters
\n" ); document.write( "The concentration would be 5g/105g = 4.8% w/w and 5g/102mL = 4.9% w/v.
\n" ); document.write( "For practical purposes, it may not make much difference wether your solution is 4.8% w/w, or 5.0% w/w, so mixing 5 grams salt with 100 grams (100mL) water would be close enough to be called 5% w/w or 5% w/v, or just 5%. \n" ); document.write( "

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