Why is there a need to wash the bottle of containing chlorine before throwing it? Explain. Why is sodium bicarbonate used resuscitation? What are the benefits of borates in pool water? Why does sodium chloride dissolve in water? Why is standardization necessary in titration?
Is the purpose of a buffer to maintain a pH of 7? Explain. Why is water used as a blank in spectrophotometer? How do you use a spectrophotometer? Why is standardization necessary in titration? Why do we use back titration? Why is methyl orange used in titration?
Why is a back titration necessary for the coulometric titration of iodine? What is the purpose of the blank solution in the volumetric analysis method? In the standardization of potassium permanganate, why is it unnecessary to add an indicator during the titration? Why doesn't the indicator affec...
In the standardization of potassium permanganate, why is it unnecessary to add an indicator during the titration? What is the purpose of the phenolphthalein solution? Why is performing titration many times necessary? Why it is not always necessary to refill the buret after e...
Why do we add acid to the standardization of sodium thiosulfate solution? Why is Iodine (I_2) considered a good contrast agent? Why can we use isopropyl alcohol instead of sodium bisulfate to remove excess sodium hypochlorite in the experiment? What is the purpose of the ferric ammonium s...
Here, a mixture of immiscible liquids is used to separate organic nonpolar compounds from polar compounds. The mixture is placed in a separatory and is typically composed of an organic solvent, which dissolves nonpolar compounds, and water, which dissolves polar...
Define the term equivalence point (of a titration). Why doesn't the indicator affect the titration results in the standardization of NaOH with standard HCl? Why did the solution turn to pink at the end of the titration ? Why are you instructed in the titration procedure to use a dr...
Why is potassium permanganate used in the process of distillation of water? Why is potassium permanganate colored? In the standardization of potassium permanganate, why is it unnecessary to add an indicator during the titration? Describe in detail how you woul...
Pinacol Rearrangement: The pinacol rearrangement is a type of elimination reaction in which an acid-catalyzed dehydration of the glycol takes place. The glycol is converted into an aldehyde or a ketone during a 1,2-dimethyl shift, so that a carbonyl compound can be produced. ...