" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
mFe = 56u
mFe(OH)3 = 56u + 3u + 48u = 107u
56u Fe - 107u Fe(OH)3
xg Fe - 100g Fe(OH)3
x= 52,34g
Zadanie 5.
VH2O = 200cm³
dH2O = 1g/cm³
mH20 = 200cm³ * 1g/cm³ = 200g
ms = 20g
mr = mH2O + ms
mr = 220g
Cp = ms/mr * 100%
Cp = 20g/220g * 100% = 9,09%
Zadanie 6.
mr1 = 400g
Cp1 = 20%
ms1 = Cp/100% * mr
ms1 = 0,2 * 400g = 80g
ms2 = 80g + 10g = 90g
mr2 = 400g +10g = 410g
Cp2 = 90g/410g * 100% = 21,95%
Zadanie 7.
metoda krzyża:
C%₁ C%₃ - C%₂
C%₃
C%₂ C%₁ - C%₃
40% 25% - 0% = 25%
25%
0% 40% - 25% = 15%
czyli stosunek jest:
25%:15%
po skróceniu:
5:3
mam nadzieję, że pomogłam, pozdrawiam wroniaak ;)