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Calculeaza volumul de co2 (c.n) obtinut la interactiunea a 50g de otet cu partea de masa 9% in reactia cu soda alimentara(NaHCO3)


Răspuns :

m(CH3COOH)=m(sol)*ω:100%=50g*9%:100%=4,5g
γ(CH3COOH)=m:M=4,5g:60g/mol=0,075mol
ecuatia reactiei: CH3COOH+NaHCO3=CH3COONa+CO2+H2O
γ(CO2)=0,075mol
V(CO2)=γ*Vm=0,075mol*22,4l/mol=1,68l