Question

What is n-Factor ? How to find that easily..!​

Answer 1

Answer:

n-factor is defined as the number of H+ ions replaced by 1 mole of acid in a reaction. Note that the n-factor for acid is not equal to its basicity; i.e. the number of moles of replaceable H+ atoms present in one mole of acid.

For example, n-factor of HCI = 1,

n-factor of HNO3 = 1,

n-factor of H2SO4 = 1 or 2, depending upon extent of reaction it undergoes.

H2SO4 + NaOH → NaHSO4 + H2O

Although one mole of H2SO4 ahs 2 replaceable H atoms but in this reaction H2SO4 has given only one H+ ion, so its n-factor would be 1.

H2SO4 + 2NaOH → Na2SO4 + 2H2O

The n-factor of H2SO4 in this reaction would be 2.

Similarly,

n-factor of H2SO3 = 1 or 2

n-factor of H2CO3 = 1 or 2

n-factor of H2PO4 = 1 or 2 or 3

n-factor of H3PO3 = 1 or 2

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Answer 2

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✳ What is n-Factor ? How to find that easily.

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✒ N factor is very important for numerical problem in chemistry. N-factor of an acid is its basicity. It is a product of molarity\normality. N-factor helps in determining the gram equivalent of compound. Total H+ ion in a compound shown in reaction is its n-factor.

⬛ TO FIND EASILY :-

H2SO4 has two hydrogen if one hydrogen is utilised in a chemical reaction then n-factor is 1 if both hydrogen is utilised then 2 is n-factor. Similarly in bases too. In NaOH acidity of this compound is. This means n-factor is 1. let a reaction be :- NaOH reacts with H2SO4 to form Na2SO4 with water. Here both hydrogen of acid is used so n-factor is 2 for acid and always n-factor of NaOH is 1.

⭐ The simplest way to find n-factor is that :-

1.) Calculate the compounds in which oxidation or reduction is happening.

2.) Then find its oxidation number in reactant and product side.

3.) Then calculate the loss or gain in electron that is the oxidation number of that compound.

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