pKa Acid pK, = НС,Н,0, 4.76 НС-Н,О, 4.20 НСЮ, 1.92 НСНО, 3.74 HCN 9.40 acetic benzoic chlorous formic hydrocyanic hydrofluoric hypochlorous monochloroacetic HC,H,CIO, 2.87 HF 3.17 НОСІ 7.53 HNO, 3.29 НОСH, 9.80 nitrous phenol
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.
A. What two compounds would be best to use in preparing a pH 9.0 buffer solution? justify your answer. Assume you have the acids and the sodium salts of their conjugate bases available to you.
Answer: The two compounds best fo preparing a buffer solution with a pH of 9.0 would be hydrocyanic (HCN) and phenol (HOc6H5) because their pKa values are 9.40 and 9.80 respectively making their pH levels the closest to 9.
B. WHat mass ration of sodium to acid is needed to prepare this buffer?
C. Can this buffer solution better resist pH changes from a string acid addition or strong base addition?
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