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2.
3.
4.
2. mr=700g
Cp=20%
ms=? ms=Cp*mr/100%
ms=700g*20%/100%
ms=140g(masa soli)
3. mh2o=200g
ms=50g
Cp=?
Cp=ms*100%/mr
mr=ms+ mH2O=50g+200g=250g
Cp=50g*100%/250g
Cp=20%
4. 2Na + Cl2 ---> 2 NaCl
Proszę ;)