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  • Calculate the molarity of 0.450 N HCl.Option: 1 0.450 MOption: 2 0.650 M</div

Calculate the molarity of 0.450 N HCl.

Option: 1

0.450 M


Option: 2

0.650 M


Option: 3

0.386 M


Option: 4

0.225 M


Answers (1)

best_answer

Normality -

Normality: “Number of gram equivalents of solute present in one litre of solution is called normality of solution”.

Normality (N) = Number of gm. equivalents of solute/volume of solution( litre)

Number of gm. equivalents of solute = w/E =weight of solute/Equivalent weight of solute

N = w / E.V(litre)

Equivalent weight = Molar mass/n.

Relation between molarity and normality:

Normality X Equivalent weight = Molarity X molar mass.

Normality = Molarity X valency.

Normality = Molarity X number of H+ or OH- ions.

The unit symbol for normality is N. It is also denoted as \frac{equiv }{L} (equivalent per liter) which is also known as normality.

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Given:

Normality of HCl = 0.450 N

It means it has 0.450 equivalents of HCl in 1000ml of solution.

The HCl produces only 1 proton (H+) in its solution.

Therefore, 0.450 equivalents = 0.450 moles in 1000ml

So, the molarity = 0.450 M

Therefore, Option(1) is correct

Posted by

avinash.dongre

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