solution to stand for 30 sesands and observe the level of the foam. Add 2 drops
ID: 715905 • Letter: S
Question
solution to stand for 30 sesands and observe the level of the foam. Add 2 drops of 4% calcium chloride solution from? Pasteur pipet. Shake the mixture for 15 seconds and allow it to stand for about 30 secon ride on the foam. Do you observe anything else? Add03g of trisodium phosphate serve the effect of the calcium chlo- and shake the mixture again for about 15 seconds. Allow the-solution to stand for 30 seconds. What do you observe? Explain these tests in your laboratoryreport. Detergent Place a 2-mm piece (about 0.005 g) of your prepared detergent in a 10-mL gradu- ated cylinder and add 3 mL of distilled water. Hold your thumb over the opening and shake the graduated cylinder vigorously for 30 seconds. Allow the solution to stand for about 30 seconds and observe the level of the foam. Add 2 drops of 4% calcium chloride solution. Shake the mixture for 15 seconds and let it stand for 30 seconds. What do you observe? Explain the results of these tests in your labo- ratory report. 1. Draw a mechanism for the reaction of lauryl alcohol with chlorosulfonic acid.Explanation / Answer
In first step we have prepared a synthetic detergent.
When calcium chloride is added to these detergents then no precipitate will form like soap solution. because synthetic detergent contain a long carbon chain with SO3-Na+ group and this species does not form precipitate with calcium chloride. So calcium salt is formed with SO3-Na+ and calcium salt does not get precipated Thats why we use synthetic detergent instead of soap in hard water. Beacuse detergent behaves same in soft as well as in hard water.
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