# 82. Toilet bowl cleaners often contain hydrochloric acid to dis- solve the calcium carbonate deposits that accumulate with in a toilet bowl. How much calcium carbonate in grams can be dissolved by 5.8 g of HCl?

Nov 27, 2016

$C a C {O}_{3} \left(s\right) + 2 H C l \left(a q\right) \rightarrow C a C {l}_{2} \left(a q\right) + {H}_{2} O \left(l\right) + C {O}_{2} \left(g\right) \uparrow$
$\text{Moles of HCl}$ $=$ $\frac{5.8 \cdot g}{36.46 \cdot g \cdot m o {l}^{-} 1} = 0.159 \cdot m o l$.
And this will react with an equivalent mass of $C a C {O}_{3}$, here $0.159 \cdot m o l \times \frac{1}{2} \times 100.09 \cdot g \cdot m o {l}^{-} 1 \cong 8 \cdot g .$