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10.00 mL solutie HBr se titreaza cu 36.2 mL solutie NaOH, 0.87 M. Care este molaritatea solutiei de HBr?

Răspuns :

Cm=n/Vs==>n=Cm*Vs=0.87*0.0362=0.031494moli NaOH

1mol........1mol
NaOH + HBr --> NaBr
0.031494...0.031494
+ H2O

Cm=n/Vs=0.031494/0.1=0.31494L=314.94ml HBr