Question #fcec8

1 Answer
Nov 25, 2016

Answer:

#CaO(s) + 2HNO_3(aq) rarr Ca(NO_3)_2(aq) + H_2O(l)#

Explanation:

#"Moles of calcium oxide"# #=# #(1.5*g)/(56.08*g*mol^-1)=??*"moles"#.

I think your original question would have asked you the concentration of the solution with respect to calcium; and maybe its #pH# if an initial volume were specified.

#"Concentration"# #=# #(1.5*g)/(56.08*g*mol^-1)xx1/("Volume (L)")# #=# #??*mol*L^-1#.

#pH=-log_10{2xx(1.5*g)/(56.08*g*mol^-1)xx1/("Volume (L)")}=??#

Note that #"calcium oxide"# dissolves in water according to the following reaction:

#CaO(s) + H_2O(l) rarr Ca(OH)_2(aq)#