Chemistry, 07.07.2019 04:00, chumreaper2002
There is a liquid mixture of water, h2o (1.0 g/ml), and pentane c5h12 (0.626 g/ml). what method would be best to separate these substances? a. decanting b. filtration c. chromatography d. distillation
Answers: 1
Chemistry, 22.06.2019 02:50, JuniperGalaxy
Consider the equilibrium system: 2icl(s) ⇄ i2(s) + cl2(g) which of the following changes will increase the total amount of of cl2 that can be produced? all of the listed answers are correct decreasing the volume of the container removing the cl2 as it is formed adding more icl(s) removing some of the i2(s)
Answers: 1
Chemistry, 22.06.2019 21:40, k3rbycalilung
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
There is a liquid mixture of water, h2o (1.0 g/ml), and pentane c5h12 (0.626 g/ml). what method woul...
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