DDT is an insecticide banned by the U. S. government because of its hazard to fish and birds. It can be prepared as follows: 2 C6H5Cl + C2HOCl3 C14H9Cl5 + H2O
chlorobenzene chloral DDT
If 451 g of chlorobenzene reacts with 368 g of chloral to yield 507 g of DDT, determine which species is the limiting reactant, and calculate the theoretical yield and the percentage yield.

An aqueous solution of hydroiodic acid is standardized by titration with a 0.186 m solution of calcium hydroxide. if 26.5 ml of base are required to neutralize 20.3 ml of the acid, what is the molarity of the hydroiodic acid solution? m hydroiodic acid

Calculate the h3o+ concentration in a solution of acetic acid if the concentration of molecular acetic acid present at equilibrium is 9.97x10^-3 m and k for the dissociation is 1.86x10^-5. ch3cooh(aq)+h2o(> h3o^+(aq)+ch3coo^-(aq)

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.