What would be the nature of solutions when the following salts are dissolved separately in the water? • NaCl • Na 2 CO 3 • CH 3 COONa • CuSO 4 • (NH 4 ) 2 SO 4 • Na 2 SO 4
Answers
Answer:
A solution is neutral when it contains equal concentrations of hydronium and hydroxide ions. When we mix solutions of an acid and a base, an acid-base neutralization reaction occurs. However, even if we mix stoichiometrically equivalent quantities, we may find that the resulting solution is not neutral. It could contain either an excess of hydronium ions or an excess of hydroxide ions because the nature of the salt formed determines whether the solution is acidic, neutral, or basic. The following four situations illustrate how solutions with various pH values can arise following a neutralization reaction using stoichiometrically equivalent quantities:
A strong acid and a strong base, such as HCl(aq) and NaOH(aq) will react to form a neutral solution since the conjugate partners produced are of negligible strength (see Chapter 14.3 Relative Strengths of Acids and Bases):
Explanation:
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