Chemistry, 10.06.2020 05:57 innocentman69
5.Durante un estudio de la velocidad de la reacción A2(g) + 3B2(g) 2 AB3(g), se observa que en un recipiente cerrado que contiene cierta cantidad de A2 y 0,75 mol/L de B2, la concentración de B2 disminuye hasta 0,5 mol/L en 40 segundos.
a) ¿Cuál es la velocidad de la reacción?
b)¿Cuál es la velocidad de desaparición de A2 durante este periodo de tiempo?
c)¿Cuál es la velocidad de aparición de AB3?
Answers: 2
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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.
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5.Durante un estudio de la velocidad de la reacción A2(g) + 3B2(g) 2 AB3(g), se observa que en un...
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