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What are possible sources of error in a conductrimetric titration experimentWhy is the solution placed in the burette very much more concentrated than that in the conical flask Explain graphs?
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∙ 15y ago
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∙ 15y ago
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Why is it advisable to remove sodium hydroxide from the burette as soon as possible after titration?
Sodium hydroxide, particularly highly concentrated sodium hydroxide, can dissolve glass if left sitting long enough. Therefore, if you leave the sodium hydroxide in the burette after finishing your titration, you could increase the volume inside the burette from the glass being dissolved from the inside out. This would make the burette measure the titration volume inaccurately and would invalidate the results of future titrations done with this instrument.
A solution in which the concentration of a solute is the maximum possible under existing conditions is said to be?
When a solution has accepted as much solute as is possible at a given temperature, the solution is said to be saturated. Under certain conditions, saturated solutions can be concentrated to give supersaturated solutions. Supersaturated solutions are those which possess more of a solute than normally dissolves in a solvent at a given temperature.
If it is possible more than 14 pH then how to measure?
Yes, though measurement is not easily done (pH-potentiometry) in concentrated alkali solution. The pH can be greater than 14 or lower than 0 in solutions with very high concentrations of [OH]- or [H]+ (> 1.0 M). And it isn't that important to know how much over 14 or under 0, is it?
How does urine differ from the original filtrate?
From the original filtrate, a lot of much needed electrolytes (Sodium e.t.c) are reabsorbed (absorbed back into blood), a few substances secreted further into the urine, then loads of water reabsorbed to fine tune body water to exactly how much you need(as much as possible), making urine far more concentrated than the original filtrate.
A solution that contains less than the maximum amount of solute is descried as?
Such a solution would be termed "dilute" as opposed to a "concentrated" or "saturated" solution containing either a great amount of solute, or the entire amount of solute possible in a particular solvent.
What is the concentration of sulphuric acid?
There are many different concentrations of "concentrated sulphuric acid". It is possible to deduce the concentration of the sulphuric acid by titration.
Why is it advisable to remove sodium hydroxide from the burette as soon as possible after titration?
Sodium hydroxide, particularly highly concentrated sodium hydroxide, can dissolve glass if left sitting long enough. Therefore, if you leave the sodium hydroxide in the burette after finishing your titration, you could increase the volume inside the burette from the glass being dissolved from the inside out. This would make the burette measure the titration volume inaccurately and would invalidate the results of future titrations done with this instrument.
Describes a solution with a large amount of solute compared to the amount of solvent?
"Concentrated" if you could still dissolve more solute in the solvent, or "saturated" if this is not possible (because there is so much dissolved already).
Is it possible to have a concentrated solution of a weak acid or base True or False?
True
Is hydrochloric concentrated acid?
Any concentration is possible to be prepared; the concentrated acid has generally a concentration of 36,5 % (36,5 g HCl in 100 mL water solution).
What is the concentration of concentrated sulphuric acid?
Sulfuric acid is used because it combines with water to produce electrolytes. Inside a car battery, these electrolytes cover the battery plates,and henceforth is utilized to power the engine turnover on startup.
What is super saturation?
Supersaturated = Being more concentrated than normally possible and therefore not in equilibrium.
How do you dissolve titanium dioxide?
You can't! It's not possible! It is possible to dissolve it. It is only soluble in hydrofluoric acid or very hot concentrated sulfuric acid, but it can be done.
Why is a concentrated acid not strong?
strong acids and bases dissociate completely; weak acids and bases dissociate only partially. In contrast, the term dilute and concentrated are used to indicate the consentration of a solution, which is the amount of acid or base dissolved in the solution. It is possible to have dilute solutions of strong acids and bases and concentrated solutions of weak acids and bases.
How do you get sharp end point in acid-base titration?
It is only possible if acid or base is very strong or both are strong secondly the proper indicator with proper concentration must be used.
Detect equivalence point in titration without an indicator?
Titration without indicator is only possible with another measurement:Examples / possibilities:pH-electrode measurement (acid-base titration)Conductivity measurement (acid-base titration or ion-reaction)Change of color by excess or depletion of the reactant/titrant (redox titration)Precipitation by excess or depletion of the reactant/titrantAdded:(The following was more or less written for 'indicator' titrations, but same principles count for other 'sharply' changing properties):The equivalence point is the point where the number of moles of titrant equal the number of moles of the reactant. The end point is the point where the indicator being used changes color (also 'indication point)'.If the indicator is chosen correctly, the end point will essentially be as near as possible at the equivalence point.The point of the titration is to find the equivalence point -- the end point is just a very close approximation to it. This is because the pH of the solution changes very rapidly close to the equivalence point.Therefore, the indicator will change color very close to the equivalence point because of the steepness of the pH change
Is it possible to buy pre mixed coolant for a car?
( YES ) you can buy premixed engine coolant ( antifreeze mixed with water ) or concentrated antifreeze
