What is the number of atoms or ions of hydrogen in #(NH_4)_2CO_3#?

1 Answer
Apr 5, 2016

Answer:

#8H#

Explanation:

The only hydrogen in the compound above,

#(NH_4)_2CO_3#

is in the #(NH_4)_2# section. You can ignore the #CO_3#.

#(NH_4)_2# means there are 2 #NH_4# groups.

#NH_4# has a total of one nitrogen and four hydrogen atoms, which you tell from the subscript (small numbers). If there are no numbers, assume it is a #1#.

Since there are two of these #NH_4# groups, and one has four hydrogen, then two must have #8#.