Bardzo prosze o pomoc , dam naj :)
Do 40g20% NaCl roztworu dodano jeszcze 5g NaCl. Jaka będzie zawartość procentowa mas?
używając wzoru W=(m(sub)+m1(sub)*100%/m(roztw.)+m1(sub)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
mr1= ms *100%/Cp
mr1= 40g *100%/20%
mr1=200g
W= 45g+40g*100%/ 205g +40g = 34,69%