The relative ability of soils to store one particular group of nutrients, the cations, is referred to as cation exchange capacity or CEC. Soils are composed of a mixture of sand, silt, clay and ...

Pour 0.2 M solutions of Cu2+, Ag+, and Zn2+ into two petri dishes per solution (six total) to a depth of about 3/8". Add a clean sample of each metal to the cation solutions of the other two metals ...

cation or a sulfate anion despite their opposite charge and different geometry. The ability to detect and differentiate these specific ions has important implications for applications in areas ...