Can anyone explain normality?

[drzakisadiq]

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I'm kinda lost with this, can anyone explain this to me? Thanks

 

[tuthluver]

When making a solution with a given normality, you measure gram equivalents of a compound, in grams, and dissolve them in a known volume in Liters

 

[futuredent22]

Think of normality as the molarity of the specific part of the molecule that you are looking at. For example, a 2 M Ca(OH)2 will have have a normality of 4 N in regard to OH.

 

[RMPredent2009]

Normality = (Molarity) x (# of equivalents of OH- or H+ or any ion for that matter)

ex. HClO has 1 equivalent of H+ (one H can dissociate)
H2SO4 has 2 equivalents of H+
NaOH has 1 equivalent of OH -

etc...

 

[doc3232]

Think of normality as the molarity of the specific part of the molecule that you are looking at. For example, a 2 M Ca(OH)2 will have have a normality of 4 N in regard to OH.

This is basically the way it will come up on the test.

 

[IDoWhatIWant]

When making a solution with a given normality, you measure gram equivalents of a compound, in grams, and dissolve them in a known volume in Liters

It's moles per liter times equivalents

For example, to neutralize 3 M Ca(OH)2 solution, you would need 6 M HCl because Ca(OH)2 has a normality of 6 N. The HCl still has a normality of 6 N.