Respuesta :
Answer: The mass percentage of carbon element is 63.57 %, hydrogen element is 5.96 %, nitrogen element is 9.28 % and oxygen element is 21.19 %
Explanation:
We are given:
A chemical compound having chemical formula of [tex]C_8H_9NO_2[/tex]. This compound is made by the combination of carbon, hydrogen, nitrogen and oxygen elements.
1 mole of acetaminophen contains 8 moles of carbon atom, 9 moles of hydrogen atom, 1 mole of nitrogen atom and 2 moles of oxygen atom
Mass of carbon element = [tex](8\times 12)=96g/mol[/tex]
Mass of hydrogen element = [tex](9\times 1)=9g/mol[/tex]
Mass of nitrogen element = [tex](1\times 14)=14g/mol[/tex]
Mass of oxygen element = [tex](2\times 16)=32g/mol[/tex]
Mass of the compound = 151 g/mol
To calculate the percentage composition of an element in a compound, we use the equation:
[tex]\%\text{ composition of an element}=\frac{\text{Mass of element}}{\text{Mass of compound}}\times 100[/tex] ........(1)
- For carbon element:
Putting values in equation 1, we get:
[tex]\% \text{ composition of carbon element}=\frac{96}{151}\times 100\\\\\% \text{ composition of carbon element}=63.57\%[/tex]
- For hydrogen element:
Putting values in equation 1, we get:
[tex]\% \text{ composition of hydrogen element}=\frac{9}{151}\times 100\\\\\% \text{ composition of hydrogen element}=5.96\%[/tex]
- For nitrogen element:
Putting values in equation 1, we get:
[tex]\% \text{ composition of nitrogen element}=\frac{14}{151}\times 100\\\\\% \text{ composition of nitrogen element}=9.28\%[/tex]
- For oxygen element:
Putting values in equation 1, we get:
[tex]\% \text{ composition of oxygen element}=\frac{32}{151}\times 100\\\\\% \text{ composition of oxygen element}=21.19\%[/tex]
Hence, the mass percentage of carbon element is 63.57 %, hydrogen element is 5.96 %, nitrogen element is 9.28 % and oxygen element is 21.19 %
