Cation Exchange

Cation exchange relates to a positively charged ion(known as a cation) and its ability to be transfered from one and only(a) molecule to another gum olibanum forming a bond. There is a measurement of the ability of a soil to do this and it is known as Cation Exchange Capacity(CEC). We tried and true the ability of different soils to do this within our lab. One was with the CEC experiment, the floculation experiment, and the glaring properties of clay. The CEC experiment tested the CEC of three different soils which were Drummer, Cisne, and Sand. The experiment was performed in a couple steps. First the soils were washed in ammonium ion acetate and consequently rinsed with alcohol. The soil was thus placed in a jar containing KCL, followed by 1 scoop of MgO powder. boric acid was and then placed in a bittie dish that was hang up above the soil and solution. after(prenominal) a hour and a half of the borric acid cosmos suspended in the sealed jar with the soil, the b oric acid was then titrated. With the amount of mL required for titration, we were then fitted to depend the CEC of the soils.Drummer required 6.7 mL to be titrated. Cisne required 1.6 mL to be titrated and the sand required 0.1 mL. We then determined the CEC by use the Calculation of 200*N*V. The results of CEC for the different soils were as follows; 26.8 for drummer, 6.4 for Cisne, and 0.4 for Sand.

This shows that drummer is least likely to let things leach threw it. Where sand has the worst CEC so it is near likely to let things pass threw with by cation exchange. The nigh experiment performed was to test floculation. In this experiment we had one ! coarse clay dispersed into 5 test tubes. dissimilar solutions were then added to the test tubes to see how they reacted. The solutions used were KCL, NaCL, CaCL2, ALCl3, and distilled water. The order of floculation seen was as follows; most being AlC3, 2nd most was CaCl2, next was NaCl, then KCL, and no floculation was seen with the distilled water. The reason for this is because the higher the charge...If you want to get a right essay, order it on our website: BestEssayCheap.com

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