Chemistry, 19.09.2019 12:10 steelersfan4343
Round off the following numbers to three significant figures and wrote them in scientific notation:
a) 0.00345796
b)568.31
Answers: 1
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How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2
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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
Round off the following numbers to three significant figures and wrote them in scientific notation:...
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