Question: Added Sr (ng/mL = ppb) Signal (arbitrary units) = 0 28.0 2.50 34.3 5.00 42.8 7.50 51.5 10.00 58.6 Tooth enamel consists mainly of the

Added Sr (ng/mL = ppb) Signal (arbitrary units) = 0 28.0

Added Sr (ng/mL = ppb) Signal (arbitrary units) = 0 28.0 2.50 34.3 5.00 42.8 7.50 51.5 10.00 58.6 Tooth enamel consists mainly of the mineral calcium hydroxyapatite, Cao(PO4)(OH)2. Trace elements in teeth of archaeological specimens provide anthropologists with clues about diet and disease of ancient people. Students at Wits measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. Solutions with a constant total volume of 10.0 mL contained 0.750 mg of dissolved tooth enamel plus variable concentrations of added Sr. Find the % concentration of Sr in the enamel sample

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