Given, MNaCl=0.1M;VNaCl=50 mL
MAgNO3=0.25M;VAgNO3=25 mL
AgNO3 + NaCl→AgCl↓ + NaNO3
No. of millimoles of NaCl=MNaCl×VNaCl=5 mMoles
No. of millimoles of AgNO3=MAgNO3×VAgNO3=6.25 mMoles
So, AgCl formed is 5m Moles
Mass of AgCl formed (5×10−3)(143)=0.715 g
% Yield =0.20.715×100=27.97%