Determining lon concentrations in mixtures (no precipitates): Find the [OH] when 50.0 mL of 0.20M NaOH is mixed with 250.0 mL of 0.30M Sr(OH)2.
Ionic Equilibrium
Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.
Arrhenius Acid
Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.
Bronsted Lowry Base In Inorganic Chemistry
Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.
![Determining lon concentrations in mixtures (no
precipitates):
Find the [OH-] when 50.0 mL of 0.20M NaOH is mixed
with 250.0 mL of 0.30M Sr(OH)2.
Both of these solutions are soluble (check solubility Table). There is NO
compound of Low Solubility involved here. So no equilibrium and no Ksp!
In this type of problem:
-use the Dilution Formula to find the final [NaOH] in the mixture
(final volume is 300.0 mL)
-dissociate the NaOH to find the [OH'] in NaOH
-use the Dilution Formula to find the final [Sr(OH),]
-dissociate the [Sr(OH),] to find the [OH] in [Sr(OH)2]
-add up the [OH] from NaOH and the [OH] from [Sr(OH),] to find the
final [OH] .
-THE ANSWER IS [OH] =
(0.53 M)
%3D
2021/7/5
UST DEPARTMENT OF CHEMICAL ENGINEERING
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