Answer:
Percentage dissociated = 0.41%
Explanation:
The chemical equation for the reaction is:
![C_3H_6ClCO_2H_{(aq)} \to C_3H_6ClCO_2^-_{(aq)}+ H^+_{(aq)}](https://tex.z-dn.net/?f=C_3H_6ClCO_2H_%7B%28aq%29%7D%20%5Cto%20C_3H_6ClCO_2%5E-_%7B%28aq%29%7D%2B%20H%5E%2B_%7B%28aq%29%7D)
The ICE table is then shown as:
![C_3H_6ClCO_2H_{(aq)} \ \ \ \ \to \ \ \ \ C_3H_6ClCO_2^-_{(aq)} \ \ + \ \ \ \ H^+_{(aq)}](https://tex.z-dn.net/?f=C_3H_6ClCO_2H_%7B%28aq%29%7D%20%20%5C%20%5C%20%5C%20%5C%20%5Cto%20%20%5C%20%5C%20%5C%20%5C%20C_3H_6ClCO_2%5E-_%7B%28aq%29%7D%20%5C%20%5C%20%2B%20%20%5C%20%5C%20%5C%20%5C%20H%5E%2B_%7B%28aq%29%7D)
Initial (M) 1.8 0 0
Change (M) - x + x + x
Equilibrium (M) (1.8 -x) x x
![K_a = \frac{[C_3H_6ClCO^-_2][H^+]}{[C_3H_6ClCO_2H]}](https://tex.z-dn.net/?f=K_a%20%20%3D%20%5Cfrac%7B%5BC_3H_6ClCO%5E-_2%5D%5BH%5E%2B%5D%7D%7B%5BC_3H_6ClCO_2H%5D%7D)
where ;
![K_a = 3.02*10^{-5}](https://tex.z-dn.net/?f=K_a%20%3D%203.02%2A10%5E%7B-5%7D)
![3.02*10^{-5} = \frac{(x)(x)}{(1.8-x)}](https://tex.z-dn.net/?f=3.02%2A10%5E%7B-5%7D%20%3D%20%5Cfrac%7B%28x%29%28x%29%7D%7B%281.8-x%29%7D)
Since the value for
is infinitesimally small; then 1.8 - x ≅ 1.8
Then;
![3.02*10^{-5} *(1.8) = {(x)(x)}](https://tex.z-dn.net/?f=3.02%2A10%5E%7B-5%7D%20%2A%281.8%29%20%3D%20%7B%28x%29%28x%29%7D)
![5.436*10^{-5}= {(x^2)](https://tex.z-dn.net/?f=5.436%2A10%5E%7B-5%7D%3D%20%7B%28x%5E2%29)
![x = \sqrt{5.436*10^{-5}}](https://tex.z-dn.net/?f=x%20%3D%20%5Csqrt%7B5.436%2A10%5E%7B-5%7D%7D)
![x = 0.0073729 \\ \\ x = 7.3729*10^{-3} \ M](https://tex.z-dn.net/?f=x%20%3D%200.0073729%20%5C%5C%20%5C%5C%20x%20%3D%207.3729%2A10%5E%7B-3%7D%20%5C%20M)
Dissociated form of 4-chlorobutanoic acid = ![C_3H_6ClCO_2^- = x= 7.3729*10^{-3} \ M](https://tex.z-dn.net/?f=C_3H_6ClCO_2%5E-%20%3D%20x%3D%207.3729%2A10%5E%7B-3%7D%20%5C%20M)
Percentage dissociated = ![\frac{C_3H_6ClCO^-_2}{C_3H_6ClCO_2H} *100](https://tex.z-dn.net/?f=%5Cfrac%7BC_3H_6ClCO%5E-_2%7D%7BC_3H_6ClCO_2H%7D%20%2A100)
Percentage dissociated = ![\frac{7.3729*10^{-3}}{1.8 }*100](https://tex.z-dn.net/?f=%5Cfrac%7B7.3729%2A10%5E%7B-3%7D%7D%7B1.8%20%7D%2A100)
Percentage dissociated = 0.4096
Percentage dissociated = 0.41% (to two significant digits)
Yeah im here and i am alos getting bored to
what are you doing and how is your day ?
Answer:
A. Samuel
Explanation:
although he is not right he gets the same measurement several times