Answers: 1
Another question on Chemistry
Chemistry, 22.06.2019 14:30
100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)
Answers: 1
Chemistry, 22.06.2019 16:00
About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?
Answers: 2
Chemistry, 22.06.2019 21:40
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
You know the right answer?
Rigo left 62 grams of ice in a closed container. When he came back he found that the ice had melted....
Questions
History, 17.10.2019 08:20
History, 17.10.2019 08:20
Mathematics, 17.10.2019 08:20
Mathematics, 17.10.2019 08:20
Mathematics, 17.10.2019 08:20
Business, 17.10.2019 08:20
Mathematics, 17.10.2019 08:20
Mathematics, 17.10.2019 08:30
Biology, 17.10.2019 08:30
Mathematics, 17.10.2019 08:30
Mathematics, 17.10.2019 08:30
Mathematics, 17.10.2019 08:30
