Question

Calculeaza concentratia molara a solutiei ce contine 18,25g HCl in 250ml solutie( sa fie rezolvata clar va rog).

Answer 1

$\displaystyle M_{HCl}=A_H+A_{Cl}=36,5g/mol \\ \\ n_{HCl}=\frac{18,25}{36,5}=0,5 \\ \\ c_{M}=\frac{n}{V_s}=\frac{0,5}{0,25}=2 mol/L$