What is the endpoint?

What is the endpoint?

An endpoint is a remote computing device that communicates back and forth with a network to which is it connected. Examples of endpoints include: Desktops. Laptops.

How many types of titration are there?

This process is called titration and the solution in the buret is called the titrant. Type of Titrations Classified into four types based on type of reaction involved; 1.Acid-base titrations 2.Complexometric titrations 3.Redox titrations4.Precipitation titrations. 3. …

What is the point of titration?

The concentration of a basic solution can be determined by titrating it with a volume of a standard acid solution (of known concentration) required to neutralize it. The purpose of the titration is the detection of the equivalence point, the point at which chemically equivalent amounts of the reactants have been mixed.

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Why is phenolphthalein pink?

Phenolphthalein (HIn) is weakly acidic in nature. And in aqueous solution, it dissociates into and ions. The pink colour of the solution is due to the concentration of ions in the solution. Under acidic conditions, the concentration of in the solution is very low and concentration of is high, hence it is colourless.

How do I calculate pKa?

To create a more manageable number, chemists define the pKa value as the negative logarithm of the Ka value: pKa = -log Ka. If you already know the pKa value for an acid and you need the Ka value, you find it by taking the antilog. In practice, this means raising both sides of the equality to exponents of 10.

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Why did the solution turn to light pink at the end of titration?

The indicator changes to pink because the phenolphthalein is ionized in basic solution. The base strips H+ ions from the acid, and near the end of the titration, it starts pulling H+ ions from the phenolphthalein. … It is used in titrations because it's easy to tell when the H+ from the acid has been neutralized.

How do you find equivalence?

To convert from moles to equivalents, simply multiply the number of moles by the number of equivalents to moles. To convert from equivalents to moles, divide the number of equivalents by the number of equivalents per mole.

What is a Neutralisation reaction?

A neutralization reaction is when an acid and a base react to form water and a salt and involves the combination of H+ ions and OH- ions to generate water. The neutralization of a strong acid and strong base has a pH equal to 7.

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What is indicator in titration?

Indicator: A substance that changes color in response to a chemical change. An acid–base indicator (e.g., phenolphthalein) changes color depending on the pH. Redox indicators are also used. A drop of indicator solution is added to the titration at the beginning; the endpoint has been reached when the color changes.

What is the half equivalence point?

The half-equivalence point of an acid-base titration is the point at which the concentration of an added base is equal to half of the original concentration of the acid. The half-equivalence point is also known as the midpoint of a titration.