The mass percent of the carbon in hexanal from the given chemical formula for hexanal CH₃(CH₂)₄CHO is: 72%
From the chemical formula for hexanal given:
The molar mass of CH₃(CH₂)₄CHO is:
= (12 × 1) + ( 1 ×3) + (12 × 4) + (1 × 2 × 4) + ( 12 × 1) + (1× 1) + (16 × 1)
= 12 + 3 + 48 + 8 + 12 + 1 + 16
= 100 grams
In the hexanal, the total carbon is = 6
Mass of carbon in the hexanal = 12 × 6 = 72
∴
The percentage mass of carbon can be calculated by using the formula:
[tex]\mathbf{= \dfrac{mass \ of \ carbon}{total \ mass \ of \ hexanal}\times 100}[/tex]
[tex]\mathbf{= \dfrac{72}{100}\times 100}[/tex]
= 72%
Therefore, we can conclude that the mass percentage of carbon in hexanal is 72%.
Learn more about calculating percentage mass here:
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