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Alkanes

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Question 4

The formula CH3CH2CH3\text{CH}_3\text{CH}_2\text{CH}_3CH3​CH2​CH3​ represents one of the hydrocarbon compounds found in liquefied petroleum gas (LPG).

a.

For this compound: Give its molecular formula.

[1]
b.

Give its empirical formula.

[1]
c.

Give the name of this compound.

[1]
d.

Give the general formula of the homologous series that contains this compound.

[1]
e.

Balance the equation to show the complete combustion of this compound:

C3H8+‾O2→‾CO2+‾H2O \text{C}_3\text{H}_8 + \underline{\quad}\text{O}_2 \rightarrow \underline{\quad}\text{CO}_2 + \underline{\quad}\text{H}_2\text{O} C3​H8​+​O2​→​CO2​+​H2​O
[1]
f.

A 5.0 mol sample of propane was completely combusted. Deduce the amount, in moles, of oxygen (O2\text{O}_2O2​) needed.

[1]
g.

Calculate the volume, in dm3\text{dm}^3dm3, that this amount of oxygen would occupy at room temperature and pressure (rtp). Assume the molar volume of gas is 24 dm3/mol at rtp.

[2]

Alkanes Questions

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