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Question
In the following strong acid and strong alkaine base is-
(a) Acetic Acid or Hydrochloric Acid
(b) Sodium hydroxide or calcium hydroxide
(a) Acetic Acid or Hydrochloric Acid
(b) Sodium hydroxide or calcium hydroxide
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Solution
Acids and bases that are completely ionized when dissolved
in water are called strong acids and strong bases. Strength of an acid or base
can be decided by pH of the solution. The total pH scale ranges from 1 to 14, with 7 considered to be neutral. A pH less than 7 is said to be acidic and solutions with a pH greater than 7 are basic or alkaline.
a)Hydrochloric acid has pH 3.01 and that of acetic
acid is 4.76. This makes hydrochloric acid a strong acid.
b)Sodium hydroxide has pH 13 and Calcium hydroxide
is 12.20. This makes Sodium hydroxide a strong base.
Acids and bases that are completely ionized when dissolved in water are called strong acids and strong bases. Strength of an acid or base can be decided by pH of the solution. The total pH scale ranges from 1 to 14, with 7 considered to be neutral. A pH less than 7 is said to be acidic and solutions with a pH greater than 7 are basic or alkaline.
a)Hydrochloric acid has pH 3.01 and that of acetic acid is 4.76. This makes hydrochloric acid a strong acid.
b)Sodium hydroxide has pH 13 and Calcium hydroxide is 12.20. This makes Sodium hydroxide a strong base.
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