Lf you have 2g of pb (SO4)2 then how many moles is that
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Ответ:
Further Explanation:
A. Adding iodine
Iodine is a mineral which is found in food and is essential for body. It is important in both radioactive and non-radioactive forms. Iodine, in its elemental state is used as a disinfectant. Its deficiency can lead to mental disabilities in children and less formation of thyroid hormone.
B. Freezing
When a substance gets converted from its liquid to a solid state, it is called freezing. This is done by lowering the temperature of the substance below its freezing point. For example, ice is formed from water by the process of freezing.
C. Aeration
In this technique, air is allowed to dissolve in the liquid. This is done by passing air through aeration turbines. Due to this process, water and air are brought closer to each other and as a result, dissolved gases are removed from the water. It is the initial step at the water treatment plant. It is also useful to remove dissolved metals via oxidation, followed by filtration.
D. Fixation
When a specimen is allowed to fix with chemicals so as to avoid autolysis during the preparation of the specimen, the process is called fixation. It has to be carried out just after the removal of tissues to avoid autolysis.
Therefore aeration is used to purify water.
Learn more:
Identify the phase change in which crystal lattice is formed: The main purpose of conducting experiments:Answer details:
Grade: Senior School
Chapter: Methods of purification
Subject: Chemistry
Keywords: aeration, fixation, iodine, freezing, purify, water, solid, liquid, specimen, autolysis, air, aeration tubes.