ile cukru i ile wody należy zmieszać aby otrzymać 350g roztworu 20 %.
mr = 350g
cp = 20%
ms = mr x cp/100%
ms = 350g x 20%/100% = 70g
m wody = mr - ms
m wody = 350g - 70g = 280g
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Litterarum radices amarae sunt, fructus iucundioresPozdrawiam :)
Dane:
mr (masa roztworu) = 350g
C% (stężenie) = 20%
*Obliczam masę cukru (ms):C% = ms * 100% :mr /*mr
C% * mr = ms * 100% /:100%
ms = C% * mr : 100% = 20% * 350g : 100% = 70g cukru
Skoro cukier w roztworze stanowi 70g, to na wodę (mw) przupada:
mw = mr - ms = 350g - 70g = 280g wody
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mr = 350g
cp = 20%
ms = mr x cp/100%
ms = 350g x 20%/100% = 70g
m wody = mr - ms
m wody = 350g - 70g = 280g
----------------------------------------------------------------------------------------------------
Litterarum radices amarae sunt, fructus iucundiores
Pozdrawiam :)
Dane:
mr (masa roztworu) = 350g
C% (stężenie) = 20%
*Obliczam masę cukru (ms):
C% = ms * 100% :mr /*mr
C% * mr = ms * 100% /:100%
ms = C% * mr : 100% = 20% * 350g : 100% = 70g cukru
Skoro cukier w roztworze stanowi 70g, to na wodę (mw) przupada:
mw = mr - ms = 350g - 70g = 280g wody