Answers: 3
Chemistry, 22.06.2019 21:40
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.
Answers: 2
Chemistry, 22.06.2019 23:00
In the reaction h2co3 (aq) + 3nh3 (aq) = 2 nh4+ (aq) + co3 2-, how many electrons are transferred?
Answers: 3
Chemistry, 23.06.2019 04:31
How many grams of iron can be made from 16.5 grams of fe2o3
Answers: 1
Which information must be known about a compound to find the molecular formula from the empirical fo...
Biology, 01.07.2019 21:30
Mathematics, 01.07.2019 21:30
Mathematics, 01.07.2019 21:30
English, 01.07.2019 21:30
Arts, 01.07.2019 21:30
History, 01.07.2019 21:30
Computers and Technology, 01.07.2019 21:30