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What substance changes color when exposed to an acid or base?
An indicator is a substance that changes color when exposed to an acid or base.
How so acid base buffer systems minimize pH changes?
Buffers contain both one weak acid and its coupled weak base, that can not react with each other (they are a so-called conjugated system). When you add strong acid it will react with the base part of this buffer, when strong base (hydroxide) is added it will react with the acid.
What is a substance that resists a pH change when small amounts of acid or base are added?
A buffer solution is a substance that resists changes in pH when small amounts of acid or base are added. Buffers are typically composed of a weak acid and its conjugate base (or a weak base and its conjugate acid) that can neutralize added acid or base without drastic changes in pH.
What is the term for the stage in an acid-base titration when the indicator changes color?
The term for the stage in an acid-base titration when the indicator changes color is called the endpoint. It signifies that the stoichiometric equivalence point has been reached, where the acid and base have reacted completely.
How can an acid turn to base?
An acid can turn into a base through a chemical reaction that involves an acid donating a proton (H+) to another substance. This proton transfer changes the nature of the substance from acidic to basic.
DOES Onion olfactory indicator changes smell in acid or base?
Yes, the onion olfactory indicator changes smell in both acid and base solutions. In acidic solutions, the smell becomes sharper and more pungent, while in basic solutions, the smell becomes sweeter and less intense.
What is the smell of onion in acid and base?
Sulphonate as it is from the Sulphyde group.
Is onion base or acid?
acid
What substance changes color when exposed to an acid or base?
An indicator is a substance that changes color when exposed to an acid or base.
The larger the K value the the acid or base?
smell
What is an indicator as related to an acid and a base?
It is a substance(chemical or natural) which changes colour in the presence of an acid or base.
How so acid base buffer systems minimize pH changes?
Buffers contain both one weak acid and its coupled weak base, that can not react with each other (they are a so-called conjugated system). When you add strong acid it will react with the base part of this buffer, when strong base (hydroxide) is added it will react with the acid.
In a reaction of an acid with a base the pH changes to a value that is closer to what?
In a reaction of an acid with a base, the pH changes to a value that is closer to 7, which is considered neutral. This occurs because the acid and base neutralize each other's effects on pH, resulting in a solution that is neither acidic nor basic.
What is a substance that resists a pH change when small amounts of acid or base are added?
A buffer solution is a substance that resists changes in pH when small amounts of acid or base are added. Buffers are typically composed of a weak acid and its conjugate base (or a weak base and its conjugate acid) that can neutralize added acid or base without drastic changes in pH.
What is the term for the stage in an acid-base titration when the indicator changes color?
The term for the stage in an acid-base titration when the indicator changes color is called the endpoint. It signifies that the stoichiometric equivalence point has been reached, where the acid and base have reacted completely.
How can an acid turn to base?
An acid can turn into a base through a chemical reaction that involves an acid donating a proton (H+) to another substance. This proton transfer changes the nature of the substance from acidic to basic.
What will an indicator do in the presence of an acid or base?
This indicator changes his color.
