document.write( "Question 169599: Normal sea water is about 3.5% solids. This is about the same as saying \"There are nearly 300 pounds of dissolved solid matter per thousand gallons of sea water\" Using this information, find the weight of a gallon of sea water. \n" ); document.write( "
Algebra.Com's Answer #124986 by gonzo(654)\"\" \"About 
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300 pounds of dissolved solids in 1000 gallons of sea water (given).
\n" ); document.write( "normal sea water contains about 3.5% solids (given).
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\n" ); document.write( "based on these facts, you can derive the approximate weight of sea water as follows:
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\n" ); document.write( "there are 300 pounds of solids in 1000 gallons of sea water.
\n" ); document.write( "this represent 3.5% of the total number of gallons of sea water.
\n" ); document.write( "300 pounds of solids is equivalent to 35 gallons of sea water.
\n" ); document.write( "this means that 35 gallons of sea water weighs 300 pounds.
\n" ); document.write( "300 pounds / 35 gallons = 8.571428571 pounds per gallon of sea water.
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\n" ); document.write( "the implicit assumption is that the solids are dissolved throughout the sea water so that the density of the sea water and the solids is the same throughout.
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\n" ); document.write( "i did a check on the web and found that the average weight of a gallon of sea water is in the neighborhood of this answer so i'm confident it's probably right.
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\n" ); document.write( "another way of looking at it would be:
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\n" ); document.write( "300 pounds of solids in 1000 gallons of sea water = .3 pounds of solids in 1 gallon of sea water.
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\n" ); document.write( "since solids are 3.5% of a gallon of sea water, then .3 pounds of solids represents 3.5% of the gallon.
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\n" ); document.write( ".3 pounds / .035 = 8.571428571 pounds for the full gallon.
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\n" ); document.write( "the assumption is again that the solids are diffused through the liquid so that the density of the solids and the liquids is the same throughout.
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\n" ); document.write( "best i can do.
\n" ); document.write( "not sure if i explained it well, but i think the answer is right.\r
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