Answer:
![Molar \ solubility=3.12x10^{-5}M](https://tex.z-dn.net/?f=Molar%20%5C%20solubility%3D3.12x10%5E%7B-5%7DM)
Explanation:
Hello,
In this case, for the dissociation of calcium fluoride:
![CaF_2(s)\rightleftharpoons Ca^{2+}+2F^-](https://tex.z-dn.net/?f=CaF_2%28s%29%5Crightleftharpoons%20Ca%5E%7B2%2B%7D%2B2F%5E-)
The equilibrium expression is:
![Ksp=[Ca^{2+}][F^-]^2](https://tex.z-dn.net/?f=Ksp%3D%5BCa%5E%7B2%2B%7D%5D%5BF%5E-%5D%5E2)
In such a way, via the ICE procedure, including an initial concentration of calcium of 0.01 M (due to the calcium nitrate solution), the reaction extent
is computed as follows:
![3.9x10^{-11}=(0.01+x)(2*x)^2\\\\x=0.0000312M](https://tex.z-dn.net/?f=3.9x10%5E%7B-11%7D%3D%280.01%2Bx%29%282%2Ax%29%5E2%5C%5C%5C%5Cx%3D0.0000312M)
Thus, the molar solubility equals the reaction extent
, therefore:
![Molar \ solubility=3.12x10^{-5}M](https://tex.z-dn.net/?f=Molar%20%5C%20solubility%3D3.12x10%5E%7B-5%7DM)
Regards.
It states the fact, which we now know, that electrons are responsible for the chemical bonding. According to this theory, valency is the number of electrons present in the outermost energy shell of the atom. This energy shell is called valency shell.
Answer: The molar mass and molecular weight of 4Fe is 223.38.
Answer:
1,806,000,000,000,000,000,000,000 atoms.
Explanation:
1 mol of anything is 6.022*10^23 units
1 mol carbon atoms = 6.022*10^23 carbon atoms
3 mol carbon atoms = 3*6.022*10^23 = 1.8*10^24 atoms
Correctly - your answer should have only 1 significant digit: 2 * 10^24 atoms.
Answer:
Biotic components, or biotic factors, can be described as any living component that affects another organism or shapes the ecosystem. This includes both animals that consume other organisms within their ecosystem, and the organism that is being consumed
Explanation:
also you spelt it wrong