Consider the complete combustion of butane (). The amount of butane utilized to produce of water is . (Nearest integer)

Question

Consider the complete combustion of butane (). The amount of butane utilized to produce  of water is  . (Nearest integer)

Canvas Classes · Accepted Answer

Strategy:
 Balanced equation for butane combustion: . Use the  ratio between butane and water moles to work backwards from the given mass of water.

Step 1: Calculate moles of water

Step 2: Calculate required mass of butane
From stoichiometry,   requires  butane.

Molar mass of butane .

In terms of :

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