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Va=100cm³
da=0,8g/cm³
cp=?
------------------------------------
ma=Va*da=100cm³*0,8g/cm³=80g
mr=ms+ma=1,7g+80g=81,7g
cp=ms*100%/mr=1,7g*100%/81,7g=2,1%
V rozp. = 100cm3
d rozp. = 0,8g\cm3
Cp = ?
d = m\V
m = d*V
m rozp. = 0,8g\cm3*100cm3
m rozp. = 80g
mr = ms + m rozp.
mr = 1,7g + 80g
mr = 81,7g
Cp = ms\mr*100%
Cp = 1,7g\81,7g*100%
Cp = około 2%
Odp: Stężenie procentowe roztworu wynosi około 2%. ;)
Mr=o,8*100=80 mrcalkowitego=80+1,7=81,7
ms=1.7
Cp=1,7*100/81,7=2,1