Draw a titration on a molecular level. Clearly indicate the titrant and substance being titrated as...

Draw a titration on a molecular level. Clearly indicate the titrant and substance being titrated as well as the products of the reaction.

Solutions

Expert Solution

There are four main types of titrations:

1). Acid-base titrations

2). Redox titrations

3). Precipitation titration

4). Complexometric titrations

Acid-Base titrations

In this type, an unknown sample of acid is estimated with a known quantity base or vice-verse. The end result reaches neutral point at pH-7 and a salt is formed in the reaction of acid and base.

When concentration of acid is unknown, we take a base of known concentration in burette and we call it titrant (solution of known concentration).

Example: HCl + NaOH H₂O + NaCl

Here HCl is titre taken in titration flask and NaOH is titrant taken in burette. On the molecular level to moniter the titration we add a indicator which changes the color of solution when neutralisation is completed. In the above titration phenolphthalein indicator is used which is colorless in acidic solution and turns to pink as soon as titration is complete.

NaCl is the salt formed in the reaction of acid and base.

(Titre: solution of unknown concentration)

queen_honey_blossom answered 1 year ago

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