A 255 g sample of ice at 0.0 0C was melted and its temperature increased to 22 0C. What was the amount of heat (q) transferred? Heat of fusion for water (ΔHfus) is 334 j/g
The specific heat of water is 4.18 J/g • 0C
This is a two step process. What steps are necessary to solve the problem?

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.