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Why might the colour of phenolphthalein slowly disappear even after all acid is titrated?
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∙ 10y ago
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Wiki User
∙ 10y ago
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How do you determine the end point from titration in acid base titration process?
it depends on the indicator used, i.e. phenolphthalein is the most popular. this is colourless in acid, purple in base, very identifiable. Keep actively swirling and when it is expected to turn (figured from a rough titration beforehand) add very slowly dropwise untill the colour turns.
Why does a solid air freshener disappear?
It disappears because it is slowly dissolving and evaporating which gives its smell off.
When a crystal copper sulphate is placed at the bottom of a beaker contaning water the colour of water slowly becomes blue?
The spreading of blue colour of coppersulphate crystals in water is due to movement of water paticles as well as coppersulphate particles.due to the movement of particles the coppersulphate crystals and water particles mix with each other this is called diffusion.diffusion takes place untill the whole water obtain blue colour.
Why do solid blocks of air freshener disappear without a trace after a few weeks?
because the air freshener substance reacts with oxygen and the chemical x is removed from the substance. after this the solid slowly dissolves over a period of time. actually it follows a sublimation process.
Color of phenolphthalein plus NaOH?
Phenolphthlalein is something like a pH indicator. When it is added to a liquid and the liquid turns pink, it means that the latter substance is basic.When the solution is added with NaOH, it will turn pink.Note that NaOH serves as a carbon dioxide neutralizer.The color of the solution will slowly fade after some time, because carbon dioxide is present in the air neutralizing the color effect of the NaOH.
Why do mothballs disappear slowly EXPLAIN?
its a type of evaporation when the air would slowly evaporate and takes the cotton whith it slowly disapearing
If Liquid-crystal display will disappear slowly?
Check the batteries.
Without Israel and America will civilization slowly disappear?
Not likely. Modern civilization first arose and developed greatly in Europe. Without Europe civilization would most likely slowly disappear.
Why does the automobile coolant in your reservoir disappear?
It does disappear slowly due to evaporation. But if it is going fats, I would look for a leak. I meant "going FAST"!
What does maheoe mean in the Hawaiian language?
Aloha: to slowly fade away or disappear
You saw a weird red dot come float by slowly and disappear why?
me to but i thought it was a UFO
How do you determine the end point from titration in acid base titration process?
it depends on the indicator used, i.e. phenolphthalein is the most popular. this is colourless in acid, purple in base, very identifiable. Keep actively swirling and when it is expected to turn (figured from a rough titration beforehand) add very slowly dropwise untill the colour turns.
What is sun set and moon set?
when the sun/moon appears to slowly meet the horizon and disappear
What is a gradient fill?
It is an area where one colour slowly changes to another colour at the other end of the same area.
Does breast becomes bigger when having constant sex?
in long periods of abstanance the breasts will slowly disappear
Rate at which you should deflate a blood pressure cuff?
slowly until the sound become muffled and then disappear
Why does a solid air freshener disappear?
It disappears because it is slowly dissolving and evaporating which gives its smell off.
