Molecular formulas

• The molecular formula is the number of atoms of each element present in one molecule.
• Ammonia = NH3
• Hydroxide = OH-
• Nitrate = NO3-
• Carbonate CO32-
• Nitrite No2-
• Phosphate = PO43-
• Carboxylic acids - RCOOH
• Esters - RCOOR'
• Aldehydes - RCHO
• Ketone - RCOR'
• Sulfate - SO42-