Acid Base Salts Class 10

Acid-Base Chemistry

• The conjugate base of the weak acid NH₃ is NH₂⁻ (amide ion).

pH of a Salt Solution

• If a salt has a pH of 9, it can be inferred that the salt is a basic salt, likely formed from the reaction of a strong base with a weak acid.

pH of a Strong Acid-Strong Base Reaction

• The pH of a solution formed by the reaction of a strong acid and a strong base in equivalent amounts is 7, which is neutral.

The Common Ion Effect

• The common ion effect in acid-base equilibria refers to the suppression of the ionization of a weak acid or a weak base by the presence of a common ion, which is an ion that is already present in the solution.

Strong vs. Weak Acids

• A strong acid is completely dissociated in water, releasing all its hydrogen ions (H⁺), whereas a weak acid only partially dissociates, releasing some of its hydrogen ions.

Test your knowledge of acid-base chemistry, including conjugate bases, pH levels, and the common ion effect, as per the 10th class curriculum.