There is no chemical called sodium hydrogen. You may be thinking of sodium hydroxide, NaOH. It contains one atom of hydrogen per molecule.
In a molecule of bleach (sodium hypochlorite, NaClO), there are no hydrogen atoms.
One molecule of sodium bicarbonate (NaHCO3) contains one sodium atom, one hydrogen atom, one carbon atom, and three oxygen atoms.... this is a total of 6 atoms per sodium bicarbonate molecule.
The molecular formula of sodium acetate is (NaCH_3COO). This means there are 3 carbon atoms, 3 hydrogen atoms, 2 oxygen atoms, and 1 sodium atom in a molecule of sodium acetate. In total, there are 9 atoms in a molecule of sodium acetate.
There are two atoms of Hydrogen in the molecule.
Sodium citrate has a chemical formula of Na3C6H5O7. This means it contains 3 sodium atoms, 6 carbon atoms, 5 hydrogen atoms, and 7 oxygen atoms. In total, there are 21 atoms in a molecule of sodium citrate.
Sodium hydroxide is NaOH and contains three atoms, one each of sodium, hydrogen and oxygen.
There are a total of 5 atoms in 2 NaOH (sodium hydroxide) - 2 sodium atoms, 2 oxygen atoms, and 1 hydrogen atom in each molecule.
A molecule consists of many atoms. When you have a hydrogen molecule, or whatever other type of molecule for that matter, you have many hydrogen atoms that make it.
There are four hydrogen atoms in an ethanal molecule, CH3CHO.
There are two atoms of hydrogen in a molecule of H2O2.
Baking soda (sodium bicarbonate) is NaHCO3. Hydrogen is H, and there is one H in the molecule. So there is one atom of hydrogen in each molecule of baking soda.
Borax has two sodium atoms.