Question

Care este masa in grame de acid clorhidric care se afla in 500 mL solutie de concentratie 0,1 mol/L

Answer 1

Buna!
Acid clorhidric HCl
Cm=n/Vs 500ml=0,5litri
n=Cm•Vs=0,1•0,5=0,05 moli de HCl
n=m/M=>m=n•M=0,05•36,5=1,825 grame de HCl
Masa molara HCl=36,5 g/mol