document.write( "Question 1191857: 23. In calcium sulfate the ratio, by mass, of calcium to sulfur is 5:4 and
\n" ); document.write( "of calcium to oxygen is 5:8. How many grams of each are there in
\n" ); document.write( "34 g of calcium sulfate? \n" ); document.write( "
Algebra.Com's Answer #823708 by math_tutor2020(3817)\"\" \"About 
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\n" ); document.write( "The ratio of calcium to sulfur is 5:4
\n" ); document.write( "The ratio of calcium to oxygen is 5:8\r
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\n" ); document.write( "\n" ); document.write( "We can flip the second ratio to get
\n" ); document.write( "ratio of oxygen to calcium is 8:5\r
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\n" ); document.write( "\n" ); document.write( "Then join up the 8:5 ratio with the 5:4 ratio to get the triple ratio 8:5:4
\n" ); document.write( "This describes the ratio of oxygen to calcium to sulfur in that exact order.\r
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\n" ); document.write( "\n" ); document.write( "Scale up that triple ratio by x to get 8x:5x:4x
\n" ); document.write( "The parts add to 8x+5x+4x = 13x+4x = 17x\r
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\n" ); document.write( "\n" ); document.write( "Set this equal to the total amount of calcium sulfate () we have, which is 34 grams.
\n" ); document.write( "17x = 34
\n" ); document.write( "x = 34/17
\n" ); document.write( "x = 2\r
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\n" ); document.write( "\n" ); document.write( "Therefore, the ratio 8x:5x:4x is 8*2:5*2:4*2 or 16:10:8\r
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\n" ); document.write( "\n" ); document.write( "Telling us that there are...
\n" ); document.write( "16 grams of oxygen
\n" ); document.write( "10 grams of calcium
\n" ); document.write( "8 grams of sulfur
\n" ); document.write( "Each describes the mass value, and not weight.
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