_______6. Na2 CO3 forms alkaline solution when dissolved in water. Why? Because water hydrolysis produces hydroxide CO32- ions reacts with H+ from water to produce HCO3- Na2 CO3 dissociates completely to produce CO32- ions CO32- ions reacts with water to produce carbonic acid
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.
_______6. Na2 CO3 forms alkaline solution when dissolved in water. Why?
- Because water hydrolysis produces hydroxide
- CO32- ions reacts with H+ from water to produce HCO3-
- Na2 CO3 dissociates completely to produce CO32- ions
- CO32- ions reacts with water to produce carbonic acid
_______7. The buffer solution maintains pH by some events except?
- The addition of a little acid
- The addition of a little base
- Addition of water
- The addition of excess acid
_______8. Which of the following is TRUE about buffer solution?
- pH of buffer solution will never change despite addition of small amount of base or acid
- Buffer can be made by mixing strong acid and salt ot its conjugate base or by mixing strong base with salt of its conjugate acid
- Buffer has acid and base components that can work specifically to resist pH charge
- The closer the ratio of a concentration, weak acid/base to the concentration of salt of its conjugate base/acid, the less effective the buffer to resist pH charge
_______9. What can be Statement can be TRUE about acidic buffer?
- It is made of a mixture of strong acid and salt of its conjugate acid
- Concentration of hydrogen ions in acidic buffer is greater than concentration of OH- ions which is present in the solution
- Dilution of buffer by adding large amount of water doesn’t change the pH of buffer solution
- Acidic buffer usually works effectively at pH range of above 7
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