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Joan L.

asked • 10/22/13

How much salt must be added to 80 pounds of a 5% salt solution to make a 24% salt solution ?

How much salt must be added to 80 pounds of a 5% salt solution to make a 24% salt solution ?

2 Answers By Expert Tutors

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Carl F. answered • 10/22/13

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Joan L.

I followed your answer. My son's teacher creates an equation.  Can you set that up in an equation format?
Thanks,
joan
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10/22/13

Carl F.

Joan,
The equation I was using is the definition of a %(w/w) solution: 5/100 = x lbs NaCl/(80 lbs NaCl + H2O) then solve as a proportion: 5 * 80 = 100x; x= (5*80)/100 = 4
 
is this what you had in mind?
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10/22/13

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