Soluble means it can be dissolved
Insoluble means it can't be dissolved
<u>Answer:</u> The equilibrium concentration of bromine gas is 0.00135 M
<u>Explanation:</u>
We are given:
Initial concentration of chlorine gas = 0.0300 M
Initial concentration of bromine monochlorine = 0.0200 M
For the given chemical equation:
![2BrCl\rightleftharpoons Br_2+Cl_2](https://tex.z-dn.net/?f=2BrCl%5Crightleftharpoons%20Br_2%2BCl_2)
<u>Initial:</u> 0.02 0.03
<u>At eqllm:</u> 0.02-2x x 0.03+x
The expression of
for above equation follows:
![K_c=\frac{[Br_2]\times [Cl_2]}{[BrCl]^2}](https://tex.z-dn.net/?f=K_c%3D%5Cfrac%7B%5BBr_2%5D%5Ctimes%20%5BCl_2%5D%7D%7B%5BBrCl%5D%5E2%7D)
We are given:
![K_c=0.141](https://tex.z-dn.net/?f=K_c%3D0.141)
Putting values in above equation, we get:
![0.141=\frac{x\times (0.03+x)}{(0.02-2x)^2}\\\\x=-0.96,+0.00135](https://tex.z-dn.net/?f=0.141%3D%5Cfrac%7Bx%5Ctimes%20%280.03%2Bx%29%7D%7B%280.02-2x%29%5E2%7D%5C%5C%5C%5Cx%3D-0.96%2C%2B0.00135)
Neglecting the value of x = -0.96 because, concentration cannot be negative
So, equilibrium concentration of bromine gas = x = 0.00135 M
Hence, the equilibrium concentration of bromine gas is 0.00135 M
Answer:
MgCl₂+ Na₂CO₃ ==> MgCO₃ + NaCl
From a quick observation
You see that the right hand side of the eqn is deficient of Sodium and Chlorine
Simply Add a Coefficient of 2 to NaCl to balance it with the left.
Your answer now becomes
MgCl₂ + Na₂CO₃ ==> MgCO₃ + 2NaCl.✅
M=7M(H₂O)
M=7*18.015 g/mol = 126.105 g/mol