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Intr-un vas se introduc 800g saramura de c 10% , 50g sare de bucatarie si 150g apa. Calculati c solutiei rezultate.
Repedee ! Multumesc !


Răspuns :

ms1=800 g
c1=10%
md2=50 g
mapa=150 g

c final=?
md1=c*ms1/100=10*800/100=80 g
mdf=md1+md2=80+50 g=130 g
msf-ms1+md2+mapa=800 +50+150=1000 g
cf=mdf/msf*100=130*100/1000=13%