2007-02-28 01:51:45 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
There are 9 oxygen atoms because it was written that (CO3)3, which means CO3 taken thrice which means there are three CO3 molecules.
In one molecule there are 3 atoms of oxygen, like that there are 3 molecules. so it is 3x3=9.
2007-02-28 02:13:08 · answer #1 · answered by Ray 2 · 0⤊ 0⤋
The subscript 3 after to CO3 means that there are three 'CO3's in the molecule. Three groups of a molecule with three oxygens means that there are 3x3=9 oxygen atoms in the molecule.
2007-02-28 01:57:16 · answer #2 · answered by Tim 4 · 0⤊ 0⤋
In 1 molecule there are 9 oxygen atoms.
In 1 mole there are 5.42.10^24 oxygen atoms
2007-02-28 01:55:04 · answer #3 · answered by Non più attiva su answers 7 · 0⤊ 0⤋
9 O atoms
2007-02-28 01:55:02 · answer #4 · answered by Nikko 2 · 0⤊ 0⤋
in that whole compound, there are 9 oxygen molecules, then you have to use avogadros number 6.22 x10 to multiply and find out the number of atoms.
2007-02-28 01:57:40 · answer #5 · answered by loveboatcaptain 5 · 0⤊ 0⤋
Nine, bcoz Al2C0(3 )X 3= 9
2007-02-28 01:55:32 · answer #6 · answered by honey cheeks 2 · 0⤊ 0⤋