C(HCl)*V(HCl) = C(Na2CO3)*V(Na2CO3)
C(HCl)*18.5 = 0.2*20.5
C(HCl) ≈ 0.22 н
T(HCl) = C(HCl)*M(HCl)/1000 = 0.22*36.5/1000 = 0,00803 г/мл
C(HCl)*V(HCl) = C(Na2CO3)*V(Na2CO3)
C(HCl)*18.5 = 0.2*20.5
C(HCl) ≈ 0.22 н
T(HCl) = C(HCl)*M(HCl)/1000 = 0.22*36.5/1000 = 0,00803 г/мл