I read and said it's a weak base
This type of reaction is called: Synthesis
Answer : The energy for vacancy formation in silver is, ![1.762\times 10^{-19}J](https://tex.z-dn.net/?f=1.762%5Ctimes%2010%5E%7B-19%7DJ)
Explanation :
Formula used :
![N_v=N\times e^{(\frac{-E}{K\times T})}](https://tex.z-dn.net/?f=N_v%3DN%5Ctimes%20e%5E%7B%28%5Cfrac%7B-E%7D%7BK%5Ctimes%20T%7D%29%7D)
or,
![N=\frac{N_A\times \rho}{M}](https://tex.z-dn.net/?f=N%3D%5Cfrac%7BN_A%5Ctimes%20%5Crho%7D%7BM%7D)
So,
![N_v=[\frac{N_A\times \rho}{M}]\times e^{(\frac{-E}{K\times T})}](https://tex.z-dn.net/?f=N_v%3D%5B%5Cfrac%7BN_A%5Ctimes%20%5Crho%7D%7BM%7D%5D%5Ctimes%20e%5E%7B%28%5Cfrac%7B-E%7D%7BK%5Ctimes%20T%7D%29%7D)
where,
= equilibrium number of vacancies = ![3.6\times 10^{23}m^{-3}=3.6\times 10^{20}L^{-1}](https://tex.z-dn.net/?f=3.6%5Ctimes%2010%5E%7B23%7Dm%5E%7B-3%7D%3D3.6%5Ctimes%2010%5E%7B20%7DL%5E%7B-1%7D)
E = energy = ?
M = atomic weight = 107.9 g/mole
= Avogadro's number = ![6.022\times 10^{23}mol^{-1}](https://tex.z-dn.net/?f=6.022%5Ctimes%2010%5E%7B23%7Dmol%5E%7B-1%7D)
= density = ![9.5g/cm^3=9.5g/ml=9500g/L](https://tex.z-dn.net/?f=9.5g%2Fcm%5E3%3D9.5g%2Fml%3D9500g%2FL)
T = temperature = ![800^oC=273+800=1073K](https://tex.z-dn.net/?f=800%5EoC%3D273%2B800%3D1073K)
K = Boltzmann constant = ![1.38\times 10^{-23}J/K](https://tex.z-dn.net/?f=1.38%5Ctimes%2010%5E%7B-23%7DJ%2FK)
Now put all the given values in the above formula, we get:
![3.6\times 10^{20}L^{-1}=[\frac{(6.022\times 10^{23}mol^{-1})\times 9500g/L}{107.9g/mol}]\times e^{[\frac{-E}{(1.38\times 10^{-23}J/K)\times 1073K}]}](https://tex.z-dn.net/?f=3.6%5Ctimes%2010%5E%7B20%7DL%5E%7B-1%7D%3D%5B%5Cfrac%7B%286.022%5Ctimes%2010%5E%7B23%7Dmol%5E%7B-1%7D%29%5Ctimes%209500g%2FL%7D%7B107.9g%2Fmol%7D%5D%5Ctimes%20e%5E%7B%5B%5Cfrac%7B-E%7D%7B%281.38%5Ctimes%2010%5E%7B-23%7DJ%2FK%29%5Ctimes%201073K%7D%5D%7D)
![E=1.762\times 10^{-19}J](https://tex.z-dn.net/?f=E%3D1.762%5Ctimes%2010%5E%7B-19%7DJ)
Therefore, the energy for vacancy formation in silver is, ![1.762\times 10^{-19}J](https://tex.z-dn.net/?f=1.762%5Ctimes%2010%5E%7B-19%7DJ)
False
<u>Explanation:</u>
The spacesuit protects the astronauts from various range of temperatures from -156°C to 121°C. Spacesuits have insulation as well as heaters. Spacesuits are equipped with thermal control systems to keep the temperature warm for the astronauts. The heaters in the spacesuit increases the temperature during extreme cold. When the astronaut's body temperature rises, the material absorbs the heat. When it drops, the material gives off the heat, providing warmth. Insulators uses micro-encapsulated phase-change materials.
Excess alcohol is removed by Vacuum filtration.
<h3>What is vacuum filtration?</h3>
- Vacuum filtration is a methodology where a tension differential is kept up with across the channel medium by clearing the air beneath the channel paper.
- Vacuum filtration gives a power on the arrangement notwithstanding that of gravity and builds the pace of filtration.
- Vacuum filtration is the standard strategy utilized for isolating a strong fluid blend when the objective is to hold the strong (for instance in crystallization).
<h3>How do you dry a product after vacuum filtration?</h3>
- The strong can be dried rapidly by washing the strong with an unpredictable fluid (methanol, CH3)2CO, or ether are normal) that the strong won't break up in. In the event that the filtrate is to be gathered, change the getting jar prior to washing.
To learn more about vacuum filtration from the given link
brainly.com/question/24082009
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