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Cp roztworu - 35%
Cp otrzymanego roztworu - 20%
mr otrzymanego roztworu - 900g
0% 15
20%
35% 20
stosunek wody do roztworu 3:4
3x+4x = 900g
7x = 900g
x≈129g
3x = 387g
4x= 516g
Należy zmieszac 387g wody i 516g roztworu
Cp1=35%
Cp2=0%
Cp3=20%
mr3=900g
SZUKANE:
mr2=?
35%-20
20%
0%-|15|
15g(0%)---->35g(20%)
Xg(0%)---->900g(20%)
15g*900g
------------
35g
3g*900g
-----------
7g
2700g
----------
7g
X = 386,4g