Z 350g 6-procentowego octu odparowano 70 g wody. Oblicz stężenie procentowe otrzymanego roztworu. Prosze ! Pilne ! ;)
mr=350gcp=6%mw=70gcp1=?]
cp=ms*100%/mrms=cp*mr/100%=6%*350g/100%=21gmr1=mr-mw=350g-70g=280gcp1=ms*100%/mr1=21g*100%/280g=7,5%
Pierwszy roztwór:
mr=350g
Cp=6%
ms=?
mw=?
Cp=ms/mr*100% /*mr
Cp*mr=ms*100% /:100%
ms=Cp*mr/100%
ms=6%*350g/100%=21g
mr=ms+mw
mw=mr-ms
mw=350g-21g=329g
Otrzymany roztwór:
ms=21g
mw=329g-70g=259g
mr=21g+259g=280g
Cp=21g/280g*100%=7,5%
Cp=7,5%
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mr=350g
cp=6%
mw=70g
cp1=?]
cp=ms*100%/mr
ms=cp*mr/100%=6%*350g/100%=21g
mr1=mr-mw=350g-70g=280g
cp1=ms*100%/mr1=21g*100%/280g=7,5%
Pierwszy roztwór:
mr=350g
Cp=6%
ms=?
mw=?
Cp=ms/mr*100% /*mr
Cp*mr=ms*100% /:100%
ms=Cp*mr/100%
ms=6%*350g/100%=21g
mr=ms+mw
mw=mr-ms
mw=350g-21g=329g
Otrzymany roztwór:
ms=21g
mw=329g-70g=259g
mr=21g+259g=280g
Cp=21g/280g*100%=7,5%
Cp=7,5%