🤓 Based on our data, we think this question is relevant for Professor Lavelle's class at UCLA.
Will Ca(OH)2 precipitate from solution if the pH of a 6.0×10−2 M solution of CaCl2 is adjusted to 8.0?
We are being asked to determine if Ca(OH)2 will precipitate from 6.0×10−2 M solution of CaCl2 when the pH is adjusted to pH 8.0.
We are dealing with a Ksp problem that has a common ion effect.
Common ion effect is the effect of the addition of common ions to the equilibrium of a solution.
To solve this problem, we will use the reaction quotient.
The reaction quotient, Q, is used to determine if our chemical reaction is at equilibrium.
Depending on if Q is greater than or less than K our reaction will shift to attain equilibrium by reaching the equilibrium constant K.
The direction our reaction shifts determines whether our reactants or products are increasing or decreasing.
If K = Q, the reaction is. at equilibrium.
If K>Q, the reaction shifts in the forward direction to reach equilibrium.
If K<Q, the reaction shifts in the reverse direction to reach equilibrium.