Answer:
I think D: none of the above
Answer:
Options: 1, 2, 3 and 5 are correct
Explanation:
- As per the Aufbau priciple, electrons go into the subshell having the most minimal conceivable energy.
- By Hund's standard, the electron arrangement of carbon, which is
, in this manner the carbon particle contains two unpaired electrons. - Electrons can never have parallel turn in s-orbitals. If there should be an occurrence of Helium, it has 2 electrons with parallel turn in its 1s orbital.
- The plan of the orbitals in a multi electron molecule is not quite the same as the course of action in a solitary electron particle inferable from the electron-electron shocks in a multi electron iota.
- In the Li particle, the 3s, 3p, and 3d orbitals have various energies.
- Helium has 2 electrons during the 1s orbital and none during the 2s.
Answer:
Average plate height: 67,4μm
Resolution: 3,10
Resolutin with increase N by a factor of 1,5: 3,80
Explanation:
Average plate height is the average between plate height of aspartame and caffeine.
Plate height is:
![H = \frac{L}{16(\frac{t_R}{W} )^2}](https://tex.z-dn.net/?f=H%20%3D%20%5Cfrac%7BL%7D%7B16%28%5Cfrac%7Bt_R%7D%7BW%7D%20%29%5E2%7D)
For aspartame: ![H = \frac{0,241x10^{6}um}{16(\frac{267,1s}{18,9s} )^2}](https://tex.z-dn.net/?f=H%20%3D%20%5Cfrac%7B0%2C241x10%5E%7B6%7Dum%7D%7B16%28%5Cfrac%7B267%2C1s%7D%7B18%2C9s%7D%20%29%5E2%7D)
H = 75,4 μm
For caffeine: ![H = \frac{0,241x10^{6}um}{16(\frac{216,7s}{13,6s} )^2}](https://tex.z-dn.net/?f=H%20%3D%20%5Cfrac%7B0%2C241x10%5E%7B6%7Dum%7D%7B16%28%5Cfrac%7B216%2C7s%7D%7B13%2C6s%7D%20%29%5E2%7D)
H = 59,33 μm
Average plate height is:
(59,3μm + 75.4μm)/2= <em>67,4μm</em>
The resolution formula is:
![R = \frac{2(t_{R2}-t_{R1})}{(w_2+w_1)}](https://tex.z-dn.net/?f=R%20%3D%20%5Cfrac%7B2%28t_%7BR2%7D-t_%7BR1%7D%29%7D%7B%28w_2%2Bw_1%29%7D)
Replacing:
![R = \frac{2(267,1s-216,7s)}{(18,9s+13,6s)}](https://tex.z-dn.net/?f=R%20%3D%20%5Cfrac%7B2%28267%2C1s-216%2C7s%29%7D%7B%2818%2C9s%2B13%2C6s%29%7D)
<em>R = 3,10</em>
<em></em>
As resolution is proportional to the square root of the number of theoretical plates, the increasing of 1,5 in the number of theoretical plates increases the resolution by a factor of √1,5 ≈ 1,22
That means resolution would be:
R 1,5N = 3,10×√1,5= <em>3,80</em>
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I hope it helps!
Answer: the formation of ester is an exothermic reaction.. therefore, decreasing the temperature will make the reaction proceed forward, producing more esters
Explanation: