# Problem: The fizz produced when an Alka-Seltzer® tablet is dissolved in water is due to the reaction between sodium bicarbonate (NaHCO3) and citric acid (H3C6H5O7): 3 NaHCO3(aq) + H3C6H5O7(aq) → 3 CO2(g) + 3 H2O(l) + Na3C6H5O7(aq). In a certain experiment 1.30 g of sodium bicarbonate and 1.30 g of citric acid are allowed to react.Which is the limiting reactant?

###### FREE Expert Solution

The limiting reactant, is the reactant that forms the less amount of product

Balanced equation: 3 NaHCO3(aq) + H3C6H5O7(aq) → 3 CO2(g) + 3 H2O(l) + Na3C6H5O7(aq)

Mole to mole comparison:

• 3 mol NaHCOform 3 mol CO2
• 1 mole H3C6H5Oforms 3 mol CO2

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###### Problem Details

The fizz produced when an Alka-Seltzer® tablet is dissolved in water is due to the reaction between sodium bicarbonate (NaHCO3) and citric acid (H3C6H5O7): 3 NaHCO3(aq) + H3C6H5O7(aq) → 3 CO2(g) + 3 H2O(l) + Na3C6H5O7(aq). In a certain experiment 1.30 g of sodium bicarbonate and 1.30 g of citric acid are allowed to react.

Which is the limiting reactant?