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Topic: Concentration of Ammonia  (Read 4868 times)

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Offline Baba

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Concentration of Ammonia
« on: October 16, 2007, 04:05:39 PM »
Little more clarification please.

Question: If 5g of Ammonium chloride(NH4Cl) is diuted in 100ml of water, what is the concentration of Ammonia (NH3) as Nirogen in mg/L.

By the way does this equation represent the reaction.

2NH4Cl + H20 -------- 2HCl + 2NH3 + H20.

Any help is appreciated.
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Offline carnation

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Re: Concentration of Ammonia
« Reply #1 on: October 18, 2007, 05:26:46 AM »
Dear Baba

The concentration of NH3 as Nitrogen is the same as concentration of NH4Cl as Nitrogen (because just one N is added to the solution).
53,5g NH4Cl (1 mole NH4Cl)have 14g N (one mole of N)
5g                                x

x = 5*14/53,5(g)
Concentration = x/100 (g/ml)
Good luck,
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Offline AWK

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Re: Concentration of Ammonia
« Reply #2 on: October 18, 2007, 05:34:42 AM »
Quote from: Baba on October 16, 2007, 04:05:39 PM

By the way does this equation represent the reaction.

2NH4Cl + H20 -------- 2HCl + 2NH3 + H20.


This reaction represents the reaction of NH4Cl hydrolysis, but its yield in water is below 1 %. For simple calculation of solution concentration you do not need write down any reaction
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AWK
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