The characteristics of a certain gas are listed in the table. Characteristics of a gasConditionSTPMass3.2 gramsWhat is the expected density of the above sample of gas?

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?

Can someone me with 6 to 10 plz this is for masteries test.

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.