Question

when co2 gas pass through saturated solution of ammonical brine, two compound x and y are formed. Y is used as antacid and decomposes to form another solid z. identify X, Y and Z and write chemical equations.

Answer 1

the compounds X, Y and Z are: Ammonium chloride, sodium bicarbonate and sodium carbonate.
The compounds X, Y and Z are: Ammonium chloride, sodium bicarbonate and sodium carbonate.The reactions are as follows:

CO2 + NaCl + NH3 + H2O → NaHCO3 + NH4Cl

2NaHCO3 → Na2CO3 + CO2 + H2O

Answer 2

X is Ammonium chloride, Y is Sodium hydrogen carbonate and Z is Sodium carbonate

Explanation:

• In a saturated solution of ammoniacal brine when $CO2$ gas is passed two compounds X and Y are formed. $NH3 + NaCl +CO2+ H2O ------ NH4Cl + NaHCO3$
• Antacid Y is used which decomposes to form another solid z.
• $NaHCO3 ---- Na2CO3 +CO2 +H2O$
• X formed  is Ammonium chloride, Y   formed is Sodium hydrogen carbonate and Z  formed is Sodium carbonate
• When ammonia is bubbled up through a brine solution that is sodium chloride ions in water then ammoniacal brine is formed.
• $NaHCO3$ is sodium bicarbonate or baking soda which is precipitated out of the solution.
• This process of formation of sodium bicarbonate is known as the Solvay process, This process is named after Ernst Solvay
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