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7 March, 04:42

Why is sodium hydrogen carbonate an effective antacid but sodium hydroxide is not?

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  1. 7 March, 05:06
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    Sodium hydrogen carbonate is a weak base, therefore it does not harm the stomach and reduces the stomach acid. Sodium hydroxide is too caustic and not easily buffered and is almost a very strong base. It has a low solubility and dissociation constant, and causes chemical burns in the mouth & throat
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