2Pb(NO₃)₂ = 2PbO + 4NO₂ + O₂
m{Pb(NO₃)₂}=9.9 g
m'{PbO}=5.5 g
M{Pb(NO₃)₂}=331.2 g/mol
M{PbO}=223.2 g/mol
w-?
w=m'{PbO}/m{PbO}
m{PbO}=M{PbO}m{Pb(NO₃)₂}/M{Pb(NO₃)₂}
w=m'{PbO}M{Pb(NO₃)₂}/[M{PbO}m{Pb(NO₃)₂}]
w=5.5*331.2/[223.2*9.9]=0.8244 (82.44%)
Answer:
191 packages of pepperoni
Explanation:
Each pizza would have 13 slices and 15 pieces of pepperoni on each one.
(because same amount of pepperoni and olives)
13 × 15 so each pizza has 195 pieces of pepperoni
138 (number of pizzas) × 195 (pieces of pepperoni)
26910 (pieces of pepperoni) / 141 (amount in each package)
= 190.85
so 191 packages
C. Their components can be separated by physical processes.
