# What mass of calcium carbide, Ca^(2+)C-=C^(2-) will give a 1.12*L volume of acetylene gas upon treatment with water?

Jul 19, 2017

$C {a}^{2 +} {\left\{C \equiv C\right\}}^{2 -} + 2 {H}_{2} O \rightarrow H C \equiv C H \left(g\right) \uparrow + C a {\left(O H\right)}_{2}$
It is a fact that $\text{1 mole}$ of $\text{Ideal Gas}$ occupies $25.4 \cdot L$ under standard conditions. You will have to check your syllabus, because standards vary across curricula........especially these days.
$\frac{1.12 \cdot L}{25.4 \cdot L \cdot m o {l}^{-} 1} \times 64.1 \cdot g \cdot m o {l}^{-} 1 \equiv 2.83 \cdot g$