A 2.95 g sample containing a mixture of potassium chloride and potassium iodide was dissolved in a 250.0 mL volumetric flask. 31.50 mL of 0.1000 M AgNO3 was used to titrate a 25.00 mL sample. Calculate the percentage of KCI and KI in the sample for analysis. M(KCI)= 74,50g / mol, M(KI)=166.0 g/mol

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.

Which statement best describes the liquid state of matter? a. it has definite shape but indefinite volume. b. it has definite shape and definite volume. c. it has indefinite shape and indefinite volume. d. it has indefinite shape but definite volume.

In general metals get as you move from left to right across the periodic table.