5. Which of the following is a conjugate acid-base pair? H₂PO4 and HPO4² HCO3 and CO² NaOH and OH H₂SO4 and SO42- 6. A 0.05M NH4Cl solution is prepared at 25°C. k, for NH3 at 25°C is 1.8 × 10-5. What is the pH of the solution? 3.03 5.28 8.72 4.12 7. CaO is mixed in H₂O to produce Ca(OH)2. What is the name of the product? Calcium oxide Calcium (II) oxide Calcium hydroxide Calcium (in) hydroxide

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Q: strong base

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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.