The Effect of Sodium Chloride on a Potato Chip

Influence of sodium chloride on potato chips What happens to the weight of potato chips at different concentrations of sodium chloride from a high moisture concentration region to a low moisture concentration region through a semipermeable membrane (Collins, 1999). The semipermeable membrane is a membrane that partially passes liquid. In the experiment I am doing, small holes are opened in the film of potato chips, so that only water molecules can come in and out of solution and chips.

My reason is that the higher the concentration of sodium chloride in solution, the lower the concentration of water. When potato chips are put in solution, some moisture is lost. After that, water diffuses into the sodium chloride solution, and the potato chips lose moisture, so weight, width and length are reduced. Then I bought pretty big potatoes and cut potato chips with 10 mm wide cork drill. Throughout the experiment they all had a length of 55 mm, an average mass of 95 g, a width of 10 mm and an average temperature of 22 ° C. per cup. I arranged six cups in order. In order to carry out as fair testing as possible, I added potato chips very quickly so that some chips are not present in the solution longer than other chips. I continued the experiment for 30 minutes.

To solve, determine the proportion of sodium in each sodium chloride sample. In the first experiment, 4.36 g of sodium was present per 11.08 g of sodium chloride. The sodium content of sodium chloride in the second experiment must be found. This was obtained by subtracting a known amount of reactive chlorine (4.20 g) from the sodium chloride amount (6.92 g). Sodium chloride 6.92 g - Chlorine 4.20 g = Sodium 2.72 g

Most commercial chlorine comes from the electrolysis of chloride ions in aqueous sodium chloride solution; this is the chloralkali process described above. Chlorine is also electrolytically produced metal such as sodium, calcium, magnesium from its molten chloride. It is also possible to produce chlorine by chemically oxidizing chloride ions in an acidic solution with a strong oxidizing agent such as manganese dioxide (MnO 2) or sodium dichromate (Na 2 Cr 2 O 7) . The reaction with manganese dioxide is: