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Topic: Reactions for components of Alka Seltzer?  (Read 5399 times)

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Offline tiny101

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Reactions for components of Alka Seltzer?
« on: July 01, 2008, 11:54:38 PM »
What are the net ionic equations for the reactions of sodium bicarbonate (NaHCO3) with acetylsalicylic acid (C9H8O4) and citric acid (C6H8O7)?

I realize that sodium bicarbonate should break apart twice, but other than that...I'm not sure of how to do this?!

Thanks in advance.
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Offline Borek

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Re: Reactions for components of Alka Seltzer?
« Reply #1 on: July 02, 2008, 03:38:47 AM »
Start writing all dissociation reactions.
« Last Edit: July 02, 2008, 03:52:15 AM by Borek »
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Offline vhpk

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Re: Reactions for components of Alka Seltzer?
« Reply #2 on: July 02, 2008, 11:36:13 PM »
Quote from: tiny101 on July 01, 2008, 11:54:38 PM
What are the net ionic equations for the reactions of sodium bicarbonate (NaHCO3) with acetylsalicylic acid (C9H8O4) and citric acid (C6H8O7)?

I realize that sodium bicarbonate should break apart twice, but other than that...I'm not sure of how to do this?!

Thanks in advance.
Remember only carboxyl group (-COOH) has the ability to react with NaHCO3, hydroxy group can't do this even though it is attached to benzene ring
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Offline Borek

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Re: Reactions for components of Alka Seltzer?
« Reply #3 on: July 03, 2008, 03:33:13 AM »
Quote from: vhpk on July 02, 2008, 11:36:13 PM
Remember only carboxyl group (-COOH) has the ability to react with NaHCO3, hydroxy group can't do this even though it is attached to benzene ring

This is way too generalized. Check Ka values for hydrogencarbonate and phenol. Which is stronger acid?
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