Why some salts are acidic in nature and some are basic in nature. state the reason.
Answers
Answer:
In acid-base chemistry, a salt is defined as the ionic compound that results from a neutralization reaction between an acid and a base. As such, salts are composed of cations (positively charged ions ) and anions (negative ions), and in their unsolvated, solid forms, they are electrically neutral (without a net charge). The component ions in a salt can be inorganic; examples include chloride (Cl−), the organic acetate (CH3COO−), and monatomic fluoride (F−), as well as polyatomic ions such as sulfate (SO42−).The Reaction of a Basic Salt in Water
There are several varieties of salts, and in this section we will consider basic salts. What makes a basic salt basic? It is due to the fact that the anion in the salt is the conjugate base of a weak acid. For a generalized anion B–, the net ionic reaction is:
B−(aq)+H2O(l)⇌BH(aq)+OH−(aq)
An example of a basic salt is sodium bicarbonate, NaHCO3. The bicarbonate ion is the conjugate base of carbonic acid, a weak acid. Therefore, it reacts with water in the following fashion:
HCO−3(aq)+H2O(l)⇌H2CO3(aq)+OH−(aq)
Because it is capable of deprotonating water and yielding a basic solution, sodium bicarbonate is a basic salt.
Other examples of basic salts include:
Calcium carbonate (CaCO3)
Sodium acetate (NaOOCCH3)
Potassium cyanide (KCN)
Sodium sulfide (Na2S)
Notice that for all of these examples, the anion is the conjugate base of a weak acid (carbonic acid, bisulfate (second dissociation step of sulfuric acid), acetic acid, hydrocyanic acid, hydrogen sulfide).
Explanation:
why some salts are acidic in nature and some are basic ?sate the reason