Answer in General Chemistry for Ojo Emmanuel #144685
Equation of reaction is NaOH(aq)+HCl(aq)=NaCl(aq)+H2O(l)
Moles of HCl that reacted
=0.0021 moles of HCl
Since the mole ratio between NaOH : HCl ,
moles of NaOH that reacted is 0.0021 moles.
If 25mL contains 0.0021 moles of NaOH
500mL solution contain?
Mass of NaOH dissolved in 500mL
mass of NaCl in 500mL solution
% of NaCl impurity= (0.32/2)*100