Am nevoie de raspunsuri pana la si 40 va rog dau coroana
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Răspuns:
Explicație:
1 c=25 % ms=md*100/c=125 g*100 /25=500g
md=125 g mH2O=ms-md=500g-125 g=375g
ms=?
mH2O=?
2.ms1=600g md1=c*ms/100=600*10/100=60 g
c=10% md final=md1+md2=60g+40 g=100g
md2=40g ms final =ms1+md2=600g+40g=640 g
cfinal=? c final=mdfnal/ms final *100=100g/640 g*100=15,625 %