Question

How normality of a solution calculated.

Answer 1

If you know the Molarity of an acid or base solution, you can easily convert it to Normality by multiplying Molarity by the number of hydrogen (or hydroxide) ions in the acid (or base). For example, a 2 M H2SO4 solution will have a Normality of 4N (2 M x 2 hydrogen ions).

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Answer 2

hey mate here is ur answer

If you know the Molarity of an acid or base solution, you can easily convert it to Normality by multiplying Molarity by the number of hydrogen (or hydroxide) ions in the acid (or base).

N = (M)(number of hydrogen or hydroxide ions)

For example, a 2 M H2SO4 solution will have a Normality of 4N (2 M x 2 hydrogen ions). A 2 M H3PO4, solution will have a Normality of 6N.

However, to make a solution of a predetermined normality requires a bit more calculating. First, you must determine the compound’s equivalent mass. This is done by taking the compound’s gram-molecular mass and dividing by the number of hydrogen ions or hydroxide ions. Here are a few examples:

H2SO4, sulfuric acid.

The gram-molecular mass is 98 (From the periodic chart the individual atomic masses are: H=1, S=32, O=16: {1x2}+32+{16x4}=98).

The number of acid hydrogen ions (H+ ) is 2.

Equivalent mass for H2SO4 is 98/2 = 49.