Question

Find the mass of oxygen in grams produced by the decomposition of 100.0 g of CO2

Answer 1

The balanced chemical equation is :

`2CO_2->2CO+O_2\\\\`

Moles of
`CO_2` ,

`n = (100\ g)/(44.01\ g/mol)\\\\n=2.27\ mol`

Now, by given chemical equation , we can see 2 mole of
`CO_2` react with 1 mole of
`O_2`.

So , 2.27 mole react with :

`N=(2.27)/(2)\ mol\\\\N=1.135\ mol`

Mass of oxygen is :

`M = N * 16\\\\M=1.135* 16\ g\\\\M =18.16\ g`

Therefore, mass of oxygen in grams produced is 18.16 g.

Hence, this is the required solution.