1. How manymolesare in 6.55 x 10 8 grams of H2 O? 2. How manygramsare in 3.24 moles Cu(NO3 )2 ?

3. How manygramsare in 6.58 moles Mg(OH)2 ?

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How have the greenhouse gasses increased from the year 2000 to 2018

Nan element’s square on the periodic table, the number with the greatest numerical value represents the

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.