I don't know the exact formula but, i know the density of iso-octane: 0.69 g/ml
And one gallon is equal to 3,840 ml so.... all you need is the volume.
In this instance, the empirical formula is the same as the formula unit: NaNO3
The empirical formula for potassium manganate is KMnO4.
The empirical formula for ribose is C5H10O5.
An empirical formula refers to the chemical formula that indicates the simplest ratio of atoms in a compound. Two different compounds may have the same empirical formula.
The empirical formula of phosphorus selenide is P2Se3.
C3h4o3
the structural formula for octane(straight chain) is CH3 CH2 CH2 CH2 CH2 CH2 CH2 CH3
I don't know the exact formula but, i know the density of iso-octane: 0.69 g/ml And one gallon is equal to 3,840 ml so.... all you need is the volume.
It is an empirical formula.
A formula unit is an empirical formula.
CH will be the empirical formula and C12H12 will be the molecular 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.
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.