do 50g 2-procentowego roztworu zasady sodowej dolano 50g wody. oblicz stężenie procentowe rozcieńczonego roztworu. prosze.....pomocy...;/
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Cp=ms/mr*100%
0,02=ms/50
ms=1g
Cp=1/(50+50)*100%
Cp=1%
mr1=50g
Cp1=2%
ms1=?
Cp=ms/mr * 100% /*mr
Cp*mr=ms*100% /:100%
ms=Cp*mr/100%
ms1=2%*50g/100%
ms1=1g
ms2=ms1=1g
mr2=mr1+50g=100g
Cp2=?
Cp2=ms2/mr2 * 100%
Cp2=1g/100g * 100%
Cp2=1%