Answer:
![\boxed {\boxed {\sf 10.3 \ moles \ of \ ammonia}}](https://tex.z-dn.net/?f=%5Cboxed%20%7B%5Cboxed%20%7B%5Csf%2010.3%20%5C%20moles%20%5C%20of%20%5C%20ammonia%7D%7D)
Explanation:
To convert from molecules to moles, we must Avogadro's Number.
This number is how many particles (atoms, molecules, ions, etc.) in 1 mole of a substance. In this case, it is molecules of ammonia in 1 mole of ammonia.
![6.022*10^{23} \ molecules \ NH_3 / mol \ NH_3](https://tex.z-dn.net/?f=6.022%2A10%5E%7B23%7D%20%5C%20molecules%20%5C%20NH_3%20%2F%20mol%20%5C%20NH_3)
Use Avogadro's number as a ratio.
![\frac{6.022*10^{23} \ molecules \ NH_3}{1 \ mol \ NH_3}}](https://tex.z-dn.net/?f=%5Cfrac%7B6.022%2A10%5E%7B23%7D%20%5C%20molecules%20%5C%20NH_3%7D%7B1%20%5C%20mol%20%5C%20NH_3%7D%7D)
Multiply by the given number of ammonia molecules (6.21*10²⁴)
![6.21*10^{24} \ molecules \ NH_3 *\frac{6.022*10^{23} \ molecules \ NH_3}{1 \ mol \ NH_3}}](https://tex.z-dn.net/?f=6.21%2A10%5E%7B24%7D%20%5C%20molecules%20%5C%20NH_3%20%2A%5Cfrac%7B6.022%2A10%5E%7B23%7D%20%5C%20molecules%20%5C%20NH_3%7D%7B1%20%5C%20mol%20%5C%20NH_3%7D%7D)
Flip the fraction so the molecules of ammonia can cancel out.
![6.21*10^{24} \ molecules \ NH_3 *\frac{1 \ mol \ NH_3}{ 6.022*10^{23} \ molecules \ NH_3}}](https://tex.z-dn.net/?f=6.21%2A10%5E%7B24%7D%20%5C%20molecules%20%5C%20NH_3%20%2A%5Cfrac%7B1%20%5C%20mol%20%5C%20NH_3%7D%7B%206.022%2A10%5E%7B23%7D%20%5C%20molecules%20%5C%20NH_3%7D%7D)
![6.21*10^{24}*\frac{1 \ mol \ NH_3}{ 6.022*10^{23}}](https://tex.z-dn.net/?f=6.21%2A10%5E%7B24%7D%2A%5Cfrac%7B1%20%5C%20mol%20%5C%20NH_3%7D%7B%206.022%2A10%5E%7B23%7D%7D)
Multiply to make 1 fraction.
![\frac{6.21*10^{24} \ mol \ NH_3}{ 6.022*10^{23}}](https://tex.z-dn.net/?f=%5Cfrac%7B6.21%2A10%5E%7B24%7D%20%5C%20mol%20%5C%20NH_3%7D%7B%206.022%2A10%5E%7B23%7D%7D)
Divide.
![10.31218864 \ mol \ NH_3](https://tex.z-dn.net/?f=10.31218864%20%5C%20mol%20%5C%20NH_3)
The original measurement of molecules had 3 significant figures (6,2 and 1). Therefore we must round our answer to 3 sig figs.
For the answer we found, 3 sig figs is the tenth place. The 1 in the hundredth place tells us to leave the 3 in the tenth place.
![10.3 \ mol \ NH_3](https://tex.z-dn.net/?f=10.3%20%5C%20mol%20%5C%20NH_3)
There are about <u>10.3 moles of ammonia</u> in 6.21*10²⁴ molecules.
1) The ground state of the atom is A
2) There are two excited states
3) There are three lines in the line spectrum
4) The transition A - B has the shortest wavelength
5) The transition that has the longest wavelength is B - C
<h3>What is the energy diagram?</h3>
We know that the energy diagram has to do with the manner in which the electrons that are in the atom can be arranged into specific energy levels. The energies levels would always begin at the ground state which is the lowest energy level.
The other higher energy levels that are above the ground state of the atom can be said to be the excited states of the atom or the molecules as the case may be. The energy level diagram of a certain atom or molecule has been shown in the image that is attached.
Learn more about energy level:brainly.com/question/17396431
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Answer:
<u>The direction of dipole moment is C→Cl and electronegativity difference = 0.5</u>
Explanation:
The dipole moment is formed when there is a separation of charges in a chemical bond. The electrons of the bond tend to be more localized near the more electronegative atom.
The electronegativity of chlorine atom = 3.0 and electronegativity of carbon atom = 2.5
Therefore, chlorine is more electronegative than carbon. So, the electrons tend to be localized more near the electronegative chlorine atom. <u>Therefore, the direction of dipole moment is C→Cl and electronegativity difference is equal to 0.5.</u>
Answer:
Explanation:
2 triangles and on square