Answer:
n(pbo) =mass/molar mass of pbo =2.127/223.2= 9.5 ×10(-3)
= since 1 mole of pbo =1 mole of pbcl2
1 mole of pbcl2 =9.5x10(-3)
therefore n(pbcl2)=mass/molar mass
9.5x10(-3) = mass/278.1
mass = 2.65g
% yeild = actual yeild/ therotical yeildx 100
% yeild = (2.523/2.65g)x 100
% yeild = 95.2%
