In the air we breathe and in the compressed air in divers' tanks, there is, in addition to oxygen, nitrogen gas (N2). This gas enters and leaves the lungs without consequences for the body, but more than 30 m deep in the water, this gas dissolves in the bloodstream. When divers rise to the surface abruptly, the pressure decreases, which causes the solubility of dissolved nitrogen to be reduced and consequently this gas to leave the blood in a violent way. This process can cause health problems or even the death of the diver, so it is recommended that they climb slowly and taking breaks.
a) Is solubility an intensive or extensive property?

In pqr m< p=60 m< q= 30 and m

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.

Total the mass on the syringe. record it in the correct row of the data table. kg done click and drag weights to change the pressure. click the syringe to zoom in and see the volume. intro