Preparamos 50 ml de una disolución de 2 ml de HCl comercial, con una densidad de 1,14 g/ml y riqueza del 43%, en agua y a continuación queremos hacer una dilución 1:100. ¿Cuánto disolvente tenemos que añadir?
¿Cuál será la concentración final en porcentaje peso/volumen?

Wind is related tot he movement or warm cold air masses which kind of heat transfer does this represent

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?

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.