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.
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4) Determine whether aqueous solutions of the following salts are acidic, basic, or neutral:
(a) FeCl3
(b) K2CO3
(c) NH4Br
(d) KClO4
5) Calculate the concentration of each species present in a 0.050-M solution of H2S. (Ka1 = 1.1 x 10^-7 and Ka2 = 6.2 x 10^-8)
6) Calculate the pH of a buffer solution prepared from 0.155 mol of phosphoric acid, (Ka1= 7.52 x 10^-3 just use Ka1) 0.250 mole of KH2PO4, and enough water to make 0.500 L of solution.
7) Calculate the pH at the following points in a titration of 40 mL (0.040 L) of 0.100 M barbituric acid (Ka = 9.8 × 10−5) with 0.100 M KOH.
(a) no KOH added
(b) 20 mL of KOH solution added
(c) 39 mL of KOH solution added
(d) 40 mL of KOH solution added
(e) 41 mL of KOH solution added
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