IStoichiometry Worksheet 1. Silver sulfide (Ag2S) is the common tarnish on silver objects. What mass of silver
sulfide can be made from 1.23 g of hydrogen sulfide (H2S) obtained from a rotten
egg? The reaction of formation of silver sulfide is given below:
4Ag(s) + 2H2S(g) + O2(g) – 2Ag S(s) + 2H2O(1) (Equation must first be
balanced.)
Reaction type _4Ag(s) + 2H2S(g) + O2(g)
Formula to solve
Balanced equation
Solve
Answer

Phosgene (carbonyl chloride), cocl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: co(g) cl2(g)⇌cocl2(g) carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 477 ∘c . at equilibrium, the concentrations were measured and the following results obtained: gas partial pressure (atm) co 0.830 cl2 1.30 cocl2 0.220 what is the equilibrium constant, kp, of this reaction