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What is the effect on a titration if the solution is exposed to air?
Wiki User
∙ 16y ago
Unless the compound you are titrating is air sensitive, which is uncommon, the main effect of air on a titration is on the strong base solution. If you are titrating a weak acid with a strong base, then the strong base solution must be very carefully standardized so that you know the exact number of moles of base. However, carbon dioxide (CO2) in the air can combine with water to form carbonic acid (H2CO3). When CO2 mixes with the water of the strong base solution forming H2CO3, it will tend to slightly neutralize it, reducing the actual concentration base in the solution.
Wiki User
∙ 16y ago
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Will the normality of an NaOH solution increase or decrease if the solution is exposed to air for prolonged periods?
If the solution volume remains unchanged, the normality will decrease as the NaOH will react with CO2 present in the air. Of course, if the solution volume is not held constant and if the evaporation rate is sufficient to concentrate the solution - it could also increase (effectively raising the normality of the remaining solution).
When calcium is exposed to air what happens?
Calcium tarnishes rapidly when exposed to air.
How does carbonation effect density?
The air bubbles lower the density of the solution
What are the disadvantages of Ph paper?
Some disadvantages of using pH paper is when the pH paper is exposed to air for too long it collects other molecules in the air and when a solution is put on top of the paper it mixes with the other molecules creating a new solution, throwing off the measurements and ruining the experiment.
When liquids are exposed air?
it evaporates
What happens to vitamin c when exposed to air?
The concentration of vitamin C in the solution decreases.
IF air oxidation of acid-iodide solution occurs what wiil happen to the iodometric titration?
Long story short, iodine in the solution made earlier through a reducing agent is weakly soluble and prone to loss to the air. Therefore, let's say you are using the titration to determine concentration of the titrant, the concentration would be off from the "true" concentration because you've lost some reactants.
Will the normality of an NaOH solution increase or decrease if the solution is exposed to air for prolonged periods?
If the solution volume remains unchanged, the normality will decrease as the NaOH will react with CO2 present in the air. Of course, if the solution volume is not held constant and if the evaporation rate is sufficient to concentrate the solution - it could also increase (effectively raising the normality of the remaining solution).
What will happens to a plant exposed to air?
what will happens to a plant exposed to air
What is the hightes alcohol level in liqued alcohol?
An alcohol solution above about 95% alcohol exposed to air will self-dillute down to that level.
When calcium is exposed to air what happens?
Calcium tarnishes rapidly when exposed to air.
What are the two main effect of allowing the NaOH solution to remain in contact with the air?
It will absorb carbon dioxide in the air, which affects its accurate concentration.
Does the desert cause an effect on the bread became stale?
the word 'because' gives you the clue....it tells you the effect is made because...of an event!!
Do nonmetals change chemically when exposed to air?
No nonmetals don't change chemically when they are exposed to air! ;)
How does carbonation effect density?
The air bubbles lower the density of the solution
Is air a solution or a suspension?
air is a solution
Why do bubbles vanish to air slightly as the carbonated drink is exposed to air longer?
Because sodas are a solution of CO2 in water and flavorings. The beverage does not bubble while the container is closed because the pressure is high. When the container is opened the pressure is reduced so the solution becomes oversaturated and starts releasing gas so the solution bubbles.
