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Author Topic: Parent Acid And Base of Calcium Nitrate  (Read 3271 times)

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dagr8est

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Parent Acid And Base of Calcium Nitrate
« on: May 07, 2006, 06:23:20 PM »

Hmm I'm having a disagreement with my lab partner over the parent acid and base of Ca(NO3)2.  We both agree that the parent acid is HNO3, but one of us thinks that the parent base is CaOH+ and the other thinks its Ca(OH)2.  Can someone clear this up? ;D
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AWK

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Re: Parent Acid And Base of Calcium Nitrate
« Reply #1 on: May 07, 2006, 07:19:51 PM »

Salts are formed by metals, oxides or hydroxides from the cation side, and oxides or acids (sometimes nonmetals) from the anion side. Hence you can start from
4Ca + 10HNO3 = 4Ca(NO3)2 + NH4NO3 + 3H2O
CaO + 2HNO3 = Ca(NO3)2 + H2O
Ca(OH)2 + 2HNO3 = Ca(NO3)2 + 2H2O

Calcium hydroxide dissociates completely in water solution. This cause that CaOH+ is something exotic formula, but "parent base" also..
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dagr8est

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Re: Parent Acid And Base of Calcium Nitrate
« Reply #2 on: May 07, 2006, 08:10:21 PM »

Sorry, I didn't understand what you said in that last sentence.  What does "exotic formula" mean?  Are you saying that CaOH+ and Ca(OH)2 could both be the parent base?
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