What is the average value of k (rate constant) for the data set below. previously it was determined that the reaction was 1st order in e and 3rd order in d. enter your value of k with 3 digits past the decimal. rate of reaction ave. init. rate trial [d] m [e] m (kpa/sec)a 0.400 0.400 5.40 x 10-3b 0.400 0.200 2.74 x 10-3c 0.800 0.400 4.37 x 10-2

Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.