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?

1 Answer
anor277
Nov 27, 2016

#CaCO_3(s) + 2HCl(aq) rarr CaCl_2(aq) + H_2O(l) +CO_2(g)uarr#

Explanation:

The stoichiometrically balanced equation tells us that each equiv calcium salt requires 2 equiv hydrochloric acid for reaction to give SOLUBLE calcium chloride and carbon dioxide gas.

#"Moles of HCl"# #=# #(5.8*g)/(36.46*g*mol^-1)=0.159*mol#.

And this will react with an equivalent mass of #CaCO_3#, here #0.159*molxx1/2xx100.09*g*mol^-1~=8*g.#

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