A compound 'X' is a constituent of baking powder. It is used as an antacid. When 'X' is heated it gives out a gas 'Y'
A compound 'X' is a constituent of baking powder. It is used as an antacid. When 'X' is heated it gives out a gas 'Y' which when passed through lime water turns it milky and a salt 'Z' is formed which is the main constituent of washing power. Identify X, Y and write balanced chemical equations for the reactions involved.
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Baking powder (NaHCO3) salt X is commonly used in bakery products. On heating, it forms sodium carbonate (Na2CO2), Y and CO2 gas, Z is evolved. When CO2 gas, Z is passed through lime water, it forms calcium carbonate (CaCO3), which is slightly soluble in water making it milky.
X-NaHCO3; Y-Na2CO3 ;Z-CO3
2 NaHCO3 +heat →Na2CO3 + H2O + CO2
Na2CO3.10H2O + heat → Na2CO3 + 10H2O
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