110g of a mixture of Caco, and Na.co.ignition suffered a loss in weigh

1.	110g of a mixture of Caco, and Na.co.ignition suffered a loss in weight of 2.29. Themass ratio of Caco, and Na,co, is1) 1:1 2) 1:1.4 3) 1.4:1 4) 1.75:1
Answer» Answer:1)1:1Explanation:Na2CO3 is thermally stable and does not decompose on ignition but CaCO3 decompse to give CO2. CaCO3 → CaO + CO2 1mole i.e 100gm of CaCO3 gives 44 gm of CO2. Wt.of CaCO3 giving 2.2 gm of CO2 =( 2.2X100/44)=5gm Wt.of CaCO3 =5gm, Wt.of Na2CO3=10-5=5gm, There foe ratio of wts=1:1 the right answer is (1)1:1

110g of a mixture of Caco, and Na.co.ignition suffered a loss in weight of 2.29. Themass ratio of Caco, and Na,co, is1) 1:1 2) 1:1.4 3) 1.4:1 4) 1.75:1

Answer»

Answer:1)1:1Explanation:Na2CO3 is thermally stable and does not decompose on ignition but CaCO3 decompse to give CO2.

CaCO3 → CaO + CO2

1mole i.e 100gm of CaCO3 gives 44 gm of CO2.

Wt.of CaCO3 giving 2.2 gm of CO2 =( 2.2X100/44)=5gm

Wt.of CaCO3 =5gm,

Wt.of Na2CO3=10-5=5gm,

There foe ratio of wts=1:1

the right answer is (1)1:1