Question

A `2.76*g` mass of silver carbonate was fiercely heated, and decomposed to give what mass of `Ag_2O`? What mass of carbon dioxide evolved?

Answer 1

We interrogate the decomposition reaction....

`Ag_2CO_3(s) + Delta rarrAg_2O(s) + CO_2(g)uarr`

Explanation:

We start with a molar quantity of `(2.76*g)/(275.75*g*mol^-1)`

`=0.0100*mol`

Now since after (FIERCE) heating 1 equiv of gaseous carbon dioxide is evolved, and we GETS a mass WITH RESPECT to silver oxide of....

`0.0100*molxx231.74*g*mol^-1=2.32*g`. What was the mass of carbon dioxide evolved?