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Vulcanization: Vulcanization is very widely used in rubber technology to improve the properties such as low tensile strength, plastic nature, thickness etc. by adding some chemicals like sulphur, hydrogen sulphide, benzene chloride etc. it is done by heating of raw rubber with sulphur at 100: 140 degree centigrade temperature. The added sulphur combines chemically as the double bonds of different rubber springs. Sulphur can also bring about vulcanization without affecting the double bonds in the polymer molecule, by eliminating H2S. The rate of vulcanization of rubber is quite slow and also depends upon the types and quality of rubber used. But, by using certain organic compounds called accelerators, vulcanization reaction speed up.
Which of the following expressions gives the de-Broglie relationship: (1) h= γ/ mv (2) γ= h/mv (3) γ=m/ mv
Q. What is conclusion in the experiment? A conclusion is a judgment based on the data acquired in the experiment. If data support a hypothesis then the hypothesis is tentativ
Q. Reactions with metals? Ans. Halogens commonly undergo reactions with metals. Halogens react with the alkali metal family, Group IA in the periodic table. For example,
how to write a good lab report on conductometri titration?
what is the chemical reaction undergone during determination of alcoholic acidity of flour
Read ALL the background, and ALL parts of the assignment ?rst (I wasn't kidding in the hints). Also, REWRITE code as you go through the assignment to make it as compact as you can.
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WATER =1.3330 SEAWATER=1.33940 OIL=1.5204
Q. Determine the moisture content in the given sample of fat? After undertaking this activity, you will be able to: • assess the moisture content in the given sample of oil
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