Answer:
I would recommend lemon Juice
Explanation:
oxidation is a chemical process that occurs in the presence of oxygen and moisture. this process cause fruits to change in color and have an undesired flavor. hence an anti-oxidant like lemon juice when added to such fruits can prevent their oxidation over a long period of time. lemon juice (ascorbic acid) is a natural antioxidant and find great use in the food and beverage industry for preservation.
Answer : The expression for solubility constant for this reaction will be,
Explanation :
Solubility product : It is defined as the product of the concentration of the ions that present in a solution raised to the power by its stoichiometric coefficient in a solution of a salt. This takes place at equilibrium only.
The solubility product constant is represented as, .
The dissociation of calcium phosphate is written as:
The expression for solubility constant for this reaction will be,
Answer:A) cotton
A fiber if available in trace or appropriate amount can link a suspect to a crime.Solubility is a preliminary test performed for identification of the type of fiber. In this method small amount of fiber evidence is dissolved in the suitable solvent to identify it's type. Some fibers completely get solublize in the solvent, some get partially soluble and other can only change their color or do not dissolve at all.
According to the given situation, the fiber dissolved in hydrochloric acid can be cotton. As the fibers of cotton are soft and slender and will get easily solubilize in hydrochloric acid.
Answer:
(i) 5-day BOD of the waste is 120 mg/l.
(ii) The ultimate carbonaceous BOD (Lo) is 20 mg/l.
Explanation:
The dilution factor D is 0.05.
The initial DO is 8.0 mg/L and the DO after 5 days is 2.0 mg/L.
The BOD of the waste for an unseeded mixture is
The ultimate carbonaceous BOD (Lo) can be calculated as
Answer:
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