Question

Rozpuszczalność soli wynosi 110g/100g h2o. Oblicz stężenie procentowe roztworu nasyconego. Ile gram wody potrzeba do otrzymania 500 g tego roztworu ?

Answer 1

 

ms = 110g

mr = 210g

 

cp = ms/mr x 100%

 

cp = 110g/210g x 100% = 52,38%

 

 

 

mr = 500g

cp = 52,38%

 

mH2O = mr - ms

 

ms = mr x cp/100%

 

ms 500g x 52,38%/100% = 261,9g

 

mH2O = 500g - 261,9g = 238,1g

 

 

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Pozdrawiam :)