Question

Why sodium hydrogen cabonate precipitate during solvay process?

Answer 1

These weak acids react with sodium bicarbonate, releasing CO2 gas which causes cake batter and bread dough to rise and produces the tiny holes in cakes and breads. Sodium hydrogen carbonatedehydrates when it is heated, forming sodium carbonate. The CO2 can be recycled to produce more NaHCO3 by the Solvay process.

Answer 2

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One of the raw materials for theprocess is limestone (calciumcarbonate, CaCO3). Limestone is heated to produce carbon dioxide. The carbon dioxide is dissolved in water. ...When NaCl is added to aqueous NH4HCO3, a precipitate of sodium hydrogen carbonate, NaHCO3, forms.