Answer:
Food or Sun
Explanation:
I'm not sure if it's food or sun, but try both
-When Ksp is the solubility product constant for a solid substance when it
dissolved in an aqueous solution, and measure the level at which a solute
dissolves in the solution.
- and we have the solubility and it is the maximum quantity of solute which can dissolve in a certain solute
we can assume the solubility = X = 2.2 x 10^-5 M
and when the balanced reaction equation is:
Mn(OH)2(s) ↔ Mn2+ + 2OH-
∴ the Ksp expression is = [Mn2+] [OH-]^2
when [Mn2+] = X = 2.2 x 10^-5 M
and [OH-] = 2X = 2*(2.2 x 10^-5) = 4.4 x 10^-5 M
by substitution:
∴ Ksp = X * (2X)^2
= (2.2 x 10^-5)(4.4 x 10^-5)^2
= 4.3 x 10^-14
Answer:
D will brain cancer eventually be curable?
Explanation:
Answer: The standard cell potential (E∘) for the reaction 
is -0.121 V
Explanation:
The reaction is:
Relation between standard Gibbs free energy and equilibrium constant follows:
where,
= Standard Gibbs free energy = ?
R = Gas constant = 
T = temperature = 298 K
K= equilibrium constant = 
Putting values in above equation, we get:
To calculate standard Gibbs free energy, we use the equation:
Where,
n = number of electrons transferred = 1
F = Faradays constant = 96500 C
= standard cell potential = ?
Putting values in above equation, we get:
Thus standard cell potential (E∘) for the reaction is -0.121 V
