What is the gas released when sodium carbonate is added to calcium chloride solution?

1 Answer
anor277
Jun 23, 2018

None to my knowledge....

Explanation:

You mix sodium carbonate, #Na_2CO_3(aq)#, and #CaCl_2(aq)#... Calcium chloride is NOT protic and therefore cannot protonate the dissolved carbonate ion...

#CO_3^(2-) + 2H^+ rarrCO_2(g)uarr + H_2O(l)#

On the other hand, in the reaction described, WE MIGHT get SOME precipitate of calcium carbonate, which is none too soluble,..

#CaCl_2(aq) + Na_2CO_3(aq) rarr underbrace(CaCO_3(s))_"white precipitate"darr + 2NaCl(aq)#

But did you not observe this reaction?

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