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How much water must be evaporated from 36 ounces of 1% salt solution to make 9% salt​ solution?

 Mar 23, 2021
 #1
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Water  = 0%  salt...so

 

36 (.01)  -  x (0)  =  (36 - x) (.09)    simplify

 

.36   =  3.24  - ,09x

 

.,09x  =  3.24  -  .36

 

.09x  =  2.88  

 

 x  =  288  /  .09    =   32 ounces  of water must be evaporated

 

cool cool cool

 Mar 23, 2021
 #2
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original salt = final salt

.01(36) = .09 (x)

x = .01(36)/(.09) = 4 oz final    so   36-2 = 32 ounces must be evaporated

 Mar 23, 2021

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