The vapour pressure of ice at an equilibrium with h2o ( water ) at 0.0075 degree celsius is 4.58mmhg at 0( degree ) is 759.8mmhg. calculate the molar heat of fusion of ice . given that , the specific volume of ice and h20 ( water ) are 1.090cm3 and 1.001cm3 respectively. take density of mercury at 0 zero degree to be equal 13.6gcm3

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.