Definition of Empirical Formula

Moderators: Chem_Mod, Chem_Admin

Tarika Gujral 1K
Posts: 62
Joined: Fri Sep 28, 2018 12:27 am

Definition of Empirical Formula

Postby Tarika Gujral 1K » Wed Oct 03, 2018 10:41 pm

Does the empirical formula represent the relative number of atoms of a compound or the relative mass ratio of the atoms in a compound?

Ramsha Dis1B
Posts: 32
Joined: Fri Sep 28, 2018 12:19 am

Re: Definition of Empirical Formula

Postby Ramsha Dis1B » Wed Oct 03, 2018 10:47 pm

The empirical formula represents the relative number of atoms.

Rian Montagh 2K
Posts: 60
Joined: Fri Sep 28, 2018 12:15 am

Re: Definition of Empirical Formula

Postby Rian Montagh 2K » Wed Oct 03, 2018 10:48 pm

So for glucose, the empirical formula would be CH2O, with a 1:2:1 ratio of C:H:O atoms.

Abhi4F
Posts: 30
Joined: Fri Sep 28, 2018 12:28 am

Re: Definition of Empirical Formula

Postby Abhi4F » Wed Oct 03, 2018 11:29 pm

The empirical formula represents the most basic ratio of atoms in the formula.

Tarika Gujral 1K
Posts: 62
Joined: Fri Sep 28, 2018 12:27 am

Re: Definition of Empirical Formula

Postby Tarika Gujral 1K » Wed Oct 03, 2018 11:33 pm

Theoretically, doesn’t it also refer to mass percent composition of the molecule?

Chloe Qiao 4C
Posts: 65
Joined: Fri Sep 28, 2018 12:27 am

Re: Definition of Empirical Formula

Postby Chloe Qiao 4C » Thu Oct 04, 2018 8:38 am

I believe empirical formula does not directly refer to the mass percent composition of a molecule because mass percent composition is based on the mass of each type of atom over the total mass(and different atoms have different masses) while the empirical formula is more about the relative ratio of each atom presented.

Julia Jones 1G
Posts: 29
Joined: Fri Sep 28, 2018 12:16 am

Re: Definition of Empirical Formula

Postby Julia Jones 1G » Thu Oct 04, 2018 9:27 am

The empirical formula represents the ratios of the atoms in their simplest form

AlexandraZuniga1L
Posts: 33
Joined: Thu Feb 15, 2018 3:02 am

Re: Definition of Empirical Formula

Postby AlexandraZuniga1L » Thu Oct 04, 2018 12:18 pm

The empirical formula shows the relative number of atoms that a molecule has whereas the molecular formula shows the actual number of atoms.

shaunajava2e
Posts: 66
Joined: Fri Sep 28, 2018 12:26 am

Re: Definition of Empirical Formula

Postby shaunajava2e » Thu Oct 04, 2018 12:49 pm

the empirical formula simplifies the ratio of the atoms in a formula, the molecular formula shows the actual number. as a result, the empirical formula of multiple molecules could be the same while the molecular formulas cannot


Return to “Empirical & Molecular Formulas”

Who is online

Users browsing this forum: No registered users and 3 guests