Question

b) 4.5 moles of mixture of Li,CO, and Na2CO3 are heated
forms 44.8 lit of CO2 at STP, then number of moles of Naz
CO3 present in the mixture is​

Answer 1

Answer:

Na

2

CO

3

is thermally stable. Therefore, when the mixture containing 2 moles of Na

2

CO

3

and 1 mole of Li

2

CO

3

is heated, only Li

2

CO

3

decomposes at STP.

The reaction is as follows:

Li

2

CO

3

→Li

2

O+CO

2

So, 1 mole of Li

2

CO

3

decomposes to give 1 mole of CO

2

. So, the volume occupied by 1 mole of CO

2

at STP is 22.4 L.

Answer 2

Answer:

Na

2

​

CO

3

​

is thermally stable. Therefore, when the mixture containing 2 moles of Na

2

​

CO

3

​

and 1 mole of Li

2

​

CO

3

​

is heated, only Li

2

​

CO

3

​

decomposes at STP.

The reaction is as follows:

Li

2

​

CO

3

​

→Li

2

​

O+CO

2

​

So, 1 mole of Li

2

​

CO

3

​

decomposes to give 1 mole of CO

2

​

. So, the volume occupied by 1 mole of CO

2

​

at STP is 22.4 L.