Respuesta :
Answer:
mole ratio = 9:8
moles of CO2 = 3.07moles
molecules of C3H7OH = 2.75 * 10^22 molecules
Explanations
The balanced form of the chemical rreaction is as shown below;
[tex]2C_3H_7OH+9O_2\rightarrow6CO_2+8H_2O[/tex]The mole ratio of oxygen to water as shown in the equation is 9:8
Given the following parameter
mole of oxygen that reacted = 4.6moles
According to stoichiometry, 9moles of oxygen produces 6 moles of caron dioxide. The moles of CO2 that is required will be expressed as:
[tex]\begin{gathered} moles\text{ of CO}_2=\frac{6}{9}\times4.6moles\text{ of O}_2 \\ moles\text{ of CO}_2=3.07moles \end{gathered}[/tex]Hence the moles of CO2 that will be produced is 3.07moles
Also if 4.6L of O2 reacted, the moles of oxygen that reacted will be;
[tex]\begin{gathered} moles\text{ of O}_2=\frac{4.6}{22.4}(1mole\text{ = 22.4L}) \\ moles\text{ of O}_2=0.205moles \end{gathered}[/tex]According to stochiometry, 2 moles of C3H7OH reacts with 9moles of oxygen, the moles of C3H7OH required will be:
[tex]\begin{gathered} moles\text{ of C}_3H_7OH=\frac{2}{9}\times0.205 \\ moles\text{ of C}_3H_7OH=0.0456moles \end{gathered}[/tex]Convert the moles of C3H7OH to molecules as shown
[tex]\begin{gathered} molecules\text{ of }C_3H_7OH=0.0456\times6.02\times10^{23} \\ molecules\text{ of }C_3H_7OH=0.275\times10^{23} \\ molecules\text{ of }C_3H_7OH=2.75\times10^{22}molecules \end{gathered}[/tex]