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Why cotton wool is dip in the lead acetate solution which is use in the limit test for arsenic?
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Why ammonia is added in heavy metals limit test?
ammonia solution is used to make the solution alkaline. In alkaline solution ,metals give colour with hydrogen sulphide.
Is sugar syrup is saturated solution or solution?
It can be. A saturated solution is one that is at the limit of how much of a solute it can hold. So whether a solution of sugar in water is saturated depends on the temperature and how much sugar is dissolved in a given amount of water.
What drinks contain arsenic?
From 0.1 to 0.9 ng ml−1, of arsenic in colas, teas and fruit juices were 94 ± 5, 101 ± 9 and 94 ± 6, respectively, achieving variation coefficients between 0.1% and 9%, confirming the accuracy of developed procedure. Detection limit, ranged from 0.01 to 0.03 ng ml−1
Why is citric acid used in limit test for iron?
citric acid is used as a buffer in iron limit test.
What is the role of a buffer?
Limit the pH....
Why lead acetate cotton used in limit test of aresenic?
TioAbsorb the H2S Gas produced during the test raction.
WHO has recommended the limit of arsenic drinking water?
0.01 mg/L
Why zinc and potssium iodide are using in arsenic limit test?
Potassium iodide reduced any arsenic(V) to arsenic(III) The zinc reacts with the arsenic(III) to form arsin, this evolves as a gas and stains the mercuric bromide paper
What is the recommendation of the limit of arsenic in drinking water?
Zero. At any dosage it's poison.
Is there a limit at some solute concentration?
Yes, there is a limit to how concentrated a solution can become.
What is an unbound solution?
It means the solution (which is a function) does not have a limit on at least one side
What is the value of Liquid limit for black cotton soil found in India?
liquid limit value of bc soil in india
Why mercuric chloride paper is used in limit test for arsenic?
Mercuric bromide or Mercuric Chloride impregnated paper react with Arsin gases, ans form a yellow stain. this is an indication of the presence of Arsenic in the sample being analysed.
What is a buffer in chemisrty?
to limit the pH change in a solution
Why ammonia is added in heavy metals limit test?
ammonia solution is used to make the solution alkaline. In alkaline solution ,metals give colour with hydrogen sulphide.
What is the limit to use the latanoprost and timolol solution after opening the container?
28 days
How is supersaturated solution obtained?
A supersaturated solution contain an amount of solute higher than the limit of solubility at a given temperature and pressure.
