Determine whether a precipitate of lead chloride, PbCl2(s), will form when a 2.0 × 10−3 mol/L solution of lead nitrate, Pb(NO3)2(aq), is combined with 1.0 × 10−3 mol/L solution of hydrochloric acid, HCl(aq), in equal volumes. a. Write the equilibrium expression for PbCl2(s).
b. Ksp for PbCl2(s) is 1.6 × 10−5. Calculate the trial ion product, Q, for this reaction.
c. Will a precipitate form? Explain.

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .