ZnI2
Since zinc oxide is an ionic lattice when solid, it does not have a structural formula. Its empirical formula is ZnO.
The compound zinc chloride has ZnCl2 as its chemical formula. The zinc atom is bonded to a pair of chlorine atoms. A link can be found below for more information.
It is an empirical formula.
CH will be the empirical formula and C12H12 will be the molecular formula
A formula unit is an empirical formula.
It Has No Empirical Formula.
An empirical formula has no data about the structure of a compound.
It has a molecular formula of C10H8 so that would make an empirical formula of C5H4.
In this instance, the empirical formula is the same as the formula unit: NaNO3
The empirical formula for potassium manganate is KMnO4.
Empirical formulaCompoundMolecularformulaCH (92.2% C; 7.8% H)acetyleneC2H2benzeneC6H6CH2 (85.6% C; 14.4% H)ethyleneC2H4buteneC4H8CH2O (40.0% C; 6.7% H;53.3% O)formaldehydeCH2Oacetic acidC2H4OglyceraldehydeC3H6O3The molecular formula may be a multiple of the empirical formula.
The density or some other information must be given that allow you to find the molar mass. Calculate the empirical formula mass. Divide molar mass by empirical formula mass. This answer is multiplied by all subscripts of the empirical formula to get the molecular formula.