# A volume of 5.6*dm^3 CO_2(g) is evolved from WHAT mass of solid calcium carbonate under standard conditions?

Jul 27, 2017

Approx. $20 \cdot g$ of stuff.......

#### Explanation:

$C a C {O}_{3} \left(s\right) + \Delta \rightarrow C a O \left(s\right) + C {O}_{2} \left(g\right)$.
We know that under standard conditions of temperature, and pressure, $1 \cdot m o l$ of Ideal Gas occupies a volume of $25.4 \cdot {\mathrm{dm}}^{3}$; you will have to fill in the appropriate standard according to your syllabus.
=(5.6*dm^3)/(25.4*dm^3*mol^-1)xx100.09*g*mol^-1=??*g