A student heats 30g of #CaCO_3# to produce #CaO# and #CO_2#. How many mole of #CaO# are produced?

1 Answer
Sep 13, 2016

Answer:

We follow the stoichiometric equation:

#CaCO_3(s) + Delta rarr CaO(s) + CO_2(g)uarr#

Explanation:

#"Moles of calcium carbonate"# #=# #(30*g)/(100.09*g*mol^-1)# #=# #0.30*mol#.

Clearly, given the 1:1 equivalence in the stoichiometric equation, if 1 mole of calcium carbonate is decomposed, 1 mole of calcium oxide is necessarily produced. If 0.03 mole of gas is evolved, 0.03 mole of calcium oxide................