Which of the following will interfere with an absorbance measurement? 1. fingerprints on the outside of the cuvette 2. scratches on the cuvette 3. a clear colorless solution 4. air bubbles 5. the cuvette filled to the top 6. liquid on the outside of the cuvetteselect one: a. 1, 2, 6 b. 2, 3, 5, 6 c. 1, 4, 5, 6 d. 1, 2, 3, 4, 6 e. 1, 2, 4, 6

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