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How does the color change when a strong acid is added an alkali to neutralise?
Wiki User
∙ 13y ago
The color does not change unless an indicator such as litmus or phenolphthalein is being used.
If litmus the color change is blue to red
If phenolphthalein the change is red to colorless
Wiki User
∙ 13y ago
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What happens to rubidium chloride when added to water?
Rubidium is a large sized atom of alkali metals family and is highly reactive towards water when it is added in water Rubidium hydroxide is formed along with bubbles of hydrogen gas this hydroxide is strong alkali so pH value of water shows a change from 7 to 12 , 13 or 14.
What do indicators test for?
Indicators are used to test if something for example whether vinegar is an acid or alkali. Due to the pH scale, 1 - 3 is a strong acid, 4 - 6 is a weak acid, 7 is neutral, 8 - 10 is a weak alkali and 11 - 14 is a strong alkali. Vinegar should turn orange when added with an indicator, with the pH of about 3.
Describe a solution that contains a buffer?
Acetic acid is added to the solution, but the pH of the solution does not change. Sodium hydroxide, a base, is added to the solution, but the pH of the solution does not change.
Why addition of sodium carbonate required in method esterification?
Strong base is added to neutralize the strong acid (H2SO4).
Is CuS soluble?
No, copper hydroxide is insoluble. It appears as a blue gelatinous precipitate when alkali is added to a solution of a copper salt, but it decomposes if you attempt to dry it.
What alkali could be added to a strong acid to neutralise it?
To neutralise a strong acid, you would need a strong alkali (or lots of a weak alkali, but that would be impractical). Potassium hydroxide, sodium hydroxide, lithium hydroxide, calcium hydroxide, calcium hydroxide and magnesium hydroxide would all work.
What is acid neutral?
alkalis / bases neutralise acids, a method in which to do this is titration where the acid is slowly added to the alkali through a burette until the mixture is neutral
If hydrochloric acid is added to sodium hydroxide the temperature increases but there is no visible change did a chemical or physical change occur?
A chemical change occurred. I really hope you did this experiment in a fume hood; adding a strong acid to a strong alkali usually creates a strong explosion.
What is the change in PH when an alkali is slowly added to an acidic solution?
The actual answer depends on the strength of the acid / alkali used. However the pH will change from around 1-6 to 8-14 depending on the strength of the acid / base. pH ~1 for strong acid pH ~6 for weak acid pH ~8 for strong base pH ~14 for strong base
Will the pH change when an alkali is added to an acid?
Yes. The pH will increase.
How does alkali help to treat acidic soil?
A soil is acidic because there are compounds within it which dissolve in water to form an acid. An acid is defined as a substance which readily gives out protons to oter molecules. An alkali is the converse, in that it is a proton acceptor and readily takes on protons. Treating an acidic soil with an alkali would neutralise the soil, and so the soil would become less acidic. If enough alkali is added, the soil will become neutral, and it will become alkaline if even more alkali is added.
Why is lime added to acidic lakes?
Lime is a strong base. When you add a base to an acid it turns it neutral. So by adding the lime to the water after a while it'll turn into precipitation itself and neutralize the acid. This is also known as acid-base neutralization.
What changes in PH occurs if an alkali is slowly added to an acidic solution?
The actual answer depends on the strength of the acid / alkali used. However the pH will change from around 1-6 to 8-14 depending on the strength of the acid / base. pH ~1 for strong acid pH ~6 for weak acid pH ~8 for strong base pH ~14 for strong base
Why is there a temperature changes when alkali is added to vinegar?
When an alkali (base) is added to vinegar, the acetic acid in the vinegar reacts with the alkali. These reactions are nearly all exothermic, that is, they generate heat as the chemical reaction proceeds. This is observed by a change in the temperature of the aqueous solution and the surrounding air.
Does water change the pH level of vinegar?
no. water just dilutes the acid but the PH will not change unless an acid or alkali is added
Is nitric acid and acid neutralizer?
alkalis / bases neutralise acids, a method in which to do this is titration where the acid is slowly added to the alkali through a burette until the mixture is neutral
What happens to rubidium chloride when added to water?
Rubidium is a large sized atom of alkali metals family and is highly reactive towards water when it is added in water Rubidium hydroxide is formed along with bubbles of hydrogen gas this hydroxide is strong alkali so pH value of water shows a change from 7 to 12 , 13 or 14.
