18. a student prepares four aqueous solutions, each
with a different solute. the mass of each dissolved
solute is shown in the table below.
mass of dissolved solute
for four aqueous solutions
solution
number
solute
ki
mass of dissolved solute
(per 100 g of h20 at 20°c)
120.9
889
25 g
5g
2
3
nano,
kci
kcio,
|
which solution is saturated?

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.