Structure:

Compound Name:

n-Butane

Formula:

C4H10

Molar Mass:

58.08 g/mol

Percent Composition by Mass:

%Carbon = [(4 carbon x 12.0 g carbon) / 58.08 g C4H10] x 100 ≈ 82.64 %Carbon by Mass

%Hydrogen = [(10 hydrogen x 1.0 g hydrogen) / 58.08 g C4H10] x 100 ≈ 17.22 %Hydrogen by Mass

Percent Composition by Number:

Total Number of Atoms = 14

%Carbon = (4 carbon atoms / 14 C4H10 atoms) x 100 ≈ 28.57 %Carbon by Number

%Hydrogen = (10 carbon atoms / 14 C4H10 atoms) x 100 ≈ 71.43 %Hydrogen by Number

Type of Bonding:

Covalent (NM-NM)

^ A model of the C4H10 molecule (some atoms can't be seen)

White = Hydrogen

Green = Carbon

^ This model above demonstrates how each hydrogen atom bonds to a carbon atom with single covalent bonds. The configuration of C4H10 looks like CH3CH2CH2CH3

White = Hydrogen

Green = Carbon

Please download Chime 3-d viewer

^ An interactive model* of butane, right click to change rendering settings**. Click and drag to rotate molecule.

*If you can't see the model, please download the interactive software, Chime 3d, from Here

**Recommended: Right Click > Display > Ball & Stick