Answer:
In effusion, a substance escapes through a tiny pinhole, or other hole whereas diffusion is the spreading out of a substance within a dispersing medium.
Effusion and diffusion are similar in terms of rates and speeds.
Explanation:
According to effusion, if there is a small hole in a container, a gas will leak from it. So, in this process a substance escapes through a tiny pinhole, or other hole.
According to diffusion, the two solutions will reach the lowest possible concentration of both, if they are combined and not mixed. So, diffusion is the spreading out of a substance within a dispersing medium.
Effusion and diffusion are similar in terms of rates and speeds.
Answer : The value of Ka for acetic acid is, ![2.03\times 10^{-5}](https://tex.z-dn.net/?f=2.03%5Ctimes%2010%5E%7B-5%7D)
Explanation :
The chemical formula of acetic acid is,
.
The chemical equilibrium reaction will be:
![CH_3COOH\rightleftharpoons CH_3COO^-+H^+](https://tex.z-dn.net/?f=CH_3COOH%5Crightleftharpoons%20CH_3COO%5E-%2BH%5E%2B)
Given:
pH = 2.96
First we have to calculate the concentration of hydrogen ion.
![pH=-\log [H^+]](https://tex.z-dn.net/?f=pH%3D-%5Clog%20%5BH%5E%2B%5D)
![2.96=-\log [H^+]](https://tex.z-dn.net/?f=2.96%3D-%5Clog%20%5BH%5E%2B%5D)
![[H^+]=1.096\times 10^{-3}M](https://tex.z-dn.net/?f=%5BH%5E%2B%5D%3D1.096%5Ctimes%2010%5E%7B-3%7DM)
That means,
![[H^+]=[CH_3COO^-]=1.096\times 10^{-3}M](https://tex.z-dn.net/?f=%5BH%5E%2B%5D%3D%5BCH_3COO%5E-%5D%3D1.096%5Ctimes%2010%5E%7B-3%7DM)
![[CH_3COOH]=0.0602-(1.096\times 10^{-3})=0.0591M](https://tex.z-dn.net/?f=%5BCH_3COOH%5D%3D0.0602-%281.096%5Ctimes%2010%5E%7B-3%7D%29%3D0.0591M)
The expression for reaction is:
![K_a=\frac{[CH_3COO^-][H^+]}{[CH_3COOH]}](https://tex.z-dn.net/?f=K_a%3D%5Cfrac%7B%5BCH_3COO%5E-%5D%5BH%5E%2B%5D%7D%7B%5BCH_3COOH%5D%7D)
![K_a=\frac{(1.096\times 10^{-3})\times (1.096\times 10^{-3})}{0.0591}](https://tex.z-dn.net/?f=K_a%3D%5Cfrac%7B%281.096%5Ctimes%2010%5E%7B-3%7D%29%5Ctimes%20%281.096%5Ctimes%2010%5E%7B-3%7D%29%7D%7B0.0591%7D)
![K_a=2.03\times 10^{-5}](https://tex.z-dn.net/?f=K_a%3D2.03%5Ctimes%2010%5E%7B-5%7D)
Thus, the value of Ka for acetic acid is, ![2.03\times 10^{-5}](https://tex.z-dn.net/?f=2.03%5Ctimes%2010%5E%7B-5%7D)
Because the catalyst is not really part of the reaction. it is something that speed up a reaction by lowering the energy need for the reaction to take place. however, in the end the catalyst is brought back to its initial state. that's why it is long lasting
Answer:You didn't provide examples
Explanation: Groundwater can cause erosion under the surface as it moves through the soil. During the movement an acid is formed which what causes erosion and deposition.
Hope that helps
Answer: Option C
Explanation:
Chylomicron is a small fat globule which is made of protein and lipids. These substances are found in the lymphatic fluid and blood where they tend to transport fat from the entry in the intestine to the liver and adipose tissue.
Once, one eats the fatty meal the blood is full of a number of chylomicrons which provides the blood texture.
The food that is digested is absorbed and transported to various parts of the body.