4.15 The experimental data for decomposition of N, O
[2N,05 → 4NO2 + O2]
in gas phase at 318K are given below:
t/s 0 400 800 1200 1600 2000 2400 2800 3200
102 [N, Og1/ 1.63 1.36 1.14 0.93 0.78 0.64 0.53 0.43 0.35
mol L
(i) Plot [N, O3) against t.
(ii) Find the half-life period for the reaction.
(iii) Draw a graph between log[N, O) and t.
(iv) What is the rate law ?
(v) Calculate the rate constant.
(vi) Calculate the half-life period from k and compare it with (ii).

What is the correct lewis structure for chloroform chcl3

Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.

What methods could you use to solubilize calcium carbonate