Question

po odparowaniu do sucha 300g roztworu otrzymano 6 g soli. Jakie bylo stezenie procentowe tego roztwor

Answer 1

 

ms = 6g

mr = 300g

 

cp = ms/mr x 100%

 

cp = 6g/300g x 100% = 2%

 

 

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Feci, quod potui, faciant meliora potentes

 

Pozdrawiam :)

Answer 2

mr = 300g

ms = 6g

Cp = ?

Cp = ms *100% / mr

Cp = 6g *100% / 300g = 2%