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Reaction of Sodium Bicarb with Citric Acid (Alka-Seltzer)

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The fizz produced when an Alka-Seltzer tablet is dissolved in water is due to the reaction between sodium bicarbonate and citric acid

3 NaHCO3 + H3C6H5O7 --> 3 CO2 + 3 H2O + Na3C6H5O7.

In a certain experiment 1.20g of sodium bicarbonate and 1.20g of citric acid are allowed to react.

Which is the limiting reactant?

How many grams of carbon dioxide form?

How many grams of the excess reactant remain after the limiting reactant is completely consumed?

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Solution Summary

Limiting reagent, stoichiometric mass and reactant remaining calculations are shown and explained.

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