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how is washing soda prepared from sodium carbonate?give its chemical equation.state the type of this salt . name the type of hardness of water which can be removed by it . (3 marks)

Posted by Sheefa Shaikh 9 months, 2 weeks ago

CBSE > Class 10 > Science

2 answers

Shivam Singh 9 months, 2 weeks ago

Washing soda(Na2CO3.10H2O) is synthesized through Solvay's process. It involves the reaction of sodium chloride(NaCl), ammonia(NH3) and carbon dioxide(CO2) in water. Carbon dioxide(CO2) involved is produced through calcium carbonate(CaCO3) and the calcium oxide(CaO) left is used in recovering ammonia(NH3). At first, sodium bicarbonate(NaHCO3) is obtained which is then converted to sodium carbonate(Na2CO3) on heating. Finally, washing soda(Na2CO3.10H2O) is produced by the recrystallization of sodium carbonate(Na2CO3).

4Thank You

Palak Siwach 9 months, 2 weeks ago

2Thank You

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Posted by Nitish Kumar Yadav 1 month, 3 weeks ago

CBSE > Class 10 > Science