Answer:
the HOMO-LUMO energy difference in ethylene is greater than that of cis,trans−1,3−cyclooctadiene
Explanation:
The λmax is the wavelength of maximum absorption. We could use it to calculate the HOMO-LUMO energy difference as follows:
For ethylene
E= hc/λ= 6.63×10^-34×3×10^8/170×10^-9= 1.17×10^-18J
For cis,trans−1,3−cyclooctadiene
E= hc/λ=6.63×10^-34×3×10^8/230×10^-9=8.6×10^-19J
Therefore, the HOMO-LUMO energy difference in ethylene is greater than that of cis,trans−1,3−cyclooctadiene
Answer:
The percent yield of chloro-ethane in the reaction is 82.98%.
Explanation:
![C_2H_6+Cl_2\rightarrow C_2H_5Cl+HCl](https://tex.z-dn.net/?f=C_2H_6%2BCl_2%5Crightarrow%20C_2H_5Cl%2BHCl)
Moles of ethane = ![\frac{300.0 g}{30 g/mol}=10 mol](https://tex.z-dn.net/?f=%5Cfrac%7B300.0%20g%7D%7B30%20g%2Fmol%7D%3D10%20mol)
Moles of chlorine gases =![\frac{650.0 g}{71 .0 g/mol}=9.1549 mol](https://tex.z-dn.net/?f=%5Cfrac%7B650.0%20g%7D%7B71%20.0%20g%2Fmol%7D%3D9.1549%20mol)
As we can see that 1 mol of ethane react with 1 mole of chlorine gas.the 10 moles will require 10 mole of chlorine gas, but only 9.1549 moles of chlorine gas is present.
This means that chlorine gas is in limiting amount and amount of formation of chloro-ethane will depend upon amount of chlorine gas.
According to reaction , 1 mol of chloro ethane gives 1 mol of chloro-ethane.
Then 9.1549 moles of chlorien gas will give:
of chloro-ethane
Mass of 9.1549 moles of chloro-ethane:
9.1549 mol × 64.5 g/mol = 590.4910 g
Theoretical yield of chloro-ethane: 590.4910 g
Given experimental yield of chloro-ethane: 490.0 g
![\% Yield=\frac{\text{Experimental yield}}{\text{Theoretical yield}}\times 100](https://tex.z-dn.net/?f=%5C%25%20Yield%3D%5Cfrac%7B%5Ctext%7BExperimental%20yield%7D%7D%7B%5Ctext%7BTheoretical%20yield%7D%7D%5Ctimes%20100)
![\%Yield (C_2H_5Cl)=\frac{490.0 g}{590.4910 g}\times 100=82.98\%](https://tex.z-dn.net/?f=%5C%25Yield%20%28C_2H_5Cl%29%3D%5Cfrac%7B490.0%20g%7D%7B590.4910%20g%7D%5Ctimes%20100%3D82.98%5C%25)
The percent yield of chloro-ethane in the reaction is 82.98%.
Answer:
Pain
Explanation:
the pain depends on u banging your head
The size of the object and the distance between the objects.