What would be the limiting reactant if 50 grams of sodium cyanide were reacted with 70 grams of copper carbonate?

1 Answer
anor277
Apr 26, 2016

#2NaC-=N + CuCO_3 rarr Na_2CO_3 + Cu(C-=N)_2#

Explanation:

From the reaction above, there should 2 equiv of sodium cyanide per equiv of copper carbonate.

#"Moles of sodium cyanide"# #=# #(50.0*g)/(49.1*g*mol^-1)#.

#"Moles of copper carbonate"# #=# #(70.0*g)/(123.56*g*mol^-1)#.

Given the stoichiometry it is pretty clear as to which reagent is in excess, and which is in deficiency.

Related questions
See all questions in Limiting Reagent
Impact of this question
1655 views around the world
You can reuse this answer
Creative Commons License