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plsss, dau corona va rog muuuult​

Plsss Dau Corona Va Rog Muuuult class=

Răspuns :

Răspuns:

MCa=40g/mol

MCaCl2=40+2x35,5=111g/mol

40g....................111g

Ca +  Cl2 →  CaCl2

10g......................xg

x=10x111/40=27,75g CaCl2

calculam in moli

n=m/M=10/40=0,25moli Ca

1mol..........1mol

Ca      +    Cl2 →  CaCl2

0,25moli....ymoli

y=0,25x1/1=0,25moli

Explicație: