Answer:
Hello
Explanation:
Can you pls tell me which language is this.... Sorry... But pls tell me it in English
Yes, a reaction will occur. Potassium chloride react with bromine to produce potassium bromide and chlorine would take place in a boiling solution.
The first diagram is showing carboxylic acid because carboxyl contains a Carbon atom as the central atom bonded with OH group, a double bonded Oxygen, hydrogen ofc, and a lone R group.
2. It is ester group
3. Correct its ether
4. It's the exact diagram for ethyl alcohol, so correct
WOOT WOOOT
Answer:
We need to add 900 mL of water.
Explanation:
To know the amount of water to add first we need to calculate the concentration of KOH when the pH is 12 and when is 11:
![14 = pH + pOH](https://tex.z-dn.net/?f=%2014%20%3D%20pH%20%2B%20pOH%20)
![pOH = -log[OH]](https://tex.z-dn.net/?f=%20pOH%20%3D%20-log%5BOH%5D%20)
![OH = 10^{-pOH}](https://tex.z-dn.net/?f=%20OH%20%3D%2010%5E%7B-pOH%7D%20)
When pH = 12 (initial):
![pOH_{i} = 14 - 12 = 2](https://tex.z-dn.net/?f=pOH_%7Bi%7D%20%3D%2014%20-%2012%20%3D%202)
![OH_{i} = 10^{-2}=0.01 M](https://tex.z-dn.net/?f=OH_%7Bi%7D%20%3D%2010%5E%7B-2%7D%3D0.01%20M)
When pH = 11 (final):
![pOH_{f} = 14 - 11 = 3](https://tex.z-dn.net/?f=pOH_%7Bf%7D%20%3D%2014%20-%2011%20%3D%203)
![OH_{f} = 10^{-3} = 0.001 M](https://tex.z-dn.net/?f=OH_%7Bf%7D%20%3D%2010%5E%7B-3%7D%20%3D%200.001%20M)
Now, by using the following equation we can find the volume of the solution to achieve a pH = 11:
![C_{i}V_{i} = C_{f}V_{f}](https://tex.z-dn.net/?f=C_%7Bi%7DV_%7Bi%7D%20%3D%20C_%7Bf%7DV_%7Bf%7D)
![V_{f} = \frac{C_{i}V_{i}}{C_{f}} = \frac{0.01 M*100 mL}{0.001 M} = 1000 mL](https://tex.z-dn.net/?f=V_%7Bf%7D%20%3D%20%5Cfrac%7BC_%7Bi%7DV_%7Bi%7D%7D%7BC_%7Bf%7D%7D%20%3D%20%5Cfrac%7B0.01%20M%2A100%20mL%7D%7B0.001%20M%7D%20%3D%201000%20mL)
Finally, to bring 100 mL of the initial solution to 1000 mL we need to add the following amount of water:
![1000 mL = V_{KOH} + V_{H_{2}O}](https://tex.z-dn.net/?f=1000%20mL%20%3D%20V_%7BKOH%7D%20%2B%20V_%7BH_%7B2%7DO%7D)
![V_{H_{2}O} = 1000 mL - V_{KOH}](https://tex.z-dn.net/?f=%20V_%7BH_%7B2%7DO%7D%20%3D%201000%20mL%20-%20V_%7BKOH%7D%20)
![V_{H_{2}O} = 1000 mL - 100 mL = 900 mL](https://tex.z-dn.net/?f=%20V_%7BH_%7B2%7DO%7D%20%3D%201000%20mL%20-%20100%20mL%20%3D%20900%20mL%20)
Therefore, we need to add 900 mL of water.
I hope it helps you!
The first ionization energy for helium (He) will be higher than that of the diatomic molecule.
<h3>FURTHER EXPLANATION</h3>
Ionization energy is the amount of energy needed to remove a valence electron from a gaseous atom.
Ionization energy depends on the strength of attraction between the valence electron and the nucleus and the stability of the atom.
Strength of Attraction between Valence Electron and Nucleus
The more attracted the valence electron is to the nucleus, the more difficult it would be to remove it. It would require more energy, therefore, making the ionization energy higher.
- Bigger atoms tend to have lower ionization energies since their valence electrons are farther from the nucleus which decreases the attraction.
- When atoms have the same number of electron shells, the atom with more electrons are smaller because of the increased attraction of the valence electrons to the nucleus . The ionization energy becomes higher.
Stability of the Atom
A stable atom is unreactive. It is in a state which allows it to exist on its own and does not require any further addition or loss of electrons. Its electron shells are filled to capacity. To remove a valence electron will destabilize the atom. This would require a lot of energy as it opposes the nature of atoms - they tend to lose or gain electrons to have a fully filled valence shell. Losing an electron from a filled shell will be unfavorable and result in a high ionization energy.
Examples of stable atoms are the noble gases (Group 18).
Helium, therefore, will have the greatest ionization energy since it is much smaller than all the other given atoms and it is a noble gas. Lithium is biggest atom among the choices, hence, it will gave the lowest ionization energy.
<h3>LEARN MORE</h3>
- Electron Affinity brainly.com/question/11302894
- Electronegativity brainly.com/question/2552510
- Atomic Radius brainly.com/question/862779
Keywords: ionization energy, periodic trends