Question

What is meant by the conjugate acid-base pair? Find the conjugate acid/base for the following species:
$HNO subscript 2 comma space space CN to the power of minus comma space space space HClO subscript 4 comma space space space straight F to the power of minus comma space space space OH to the power of minus comma space space CO subscript 3 superscript 2 minus end superscript space and space straight S to the power of 2 minus end exponent.$

Solution

An acid-base pair which differs by a proton is called conjugate acid-base pair.

Species space space space space space space space space space space space space Conjugate space base HNO subscript 2 space space space space space space space space space space space space space space space space space space space NO subscript 2 superscript minus HClO subscript 4 space space space space space space space space space space space space space space space space space space ClO subscript 4 superscript minus CN to the power of minus space space space space space space space space space space space space space space space space space space space space HCN straight F to the power of minus space space space space space space space space space space space space space space space space space space space space space space space HF OH to the power of minus space space space space space space space space space space space space space space space space space space space space straight H subscript 2 straight O CO subscript 3 superscript 2 minus end superscript space space space space space space space space space space space space space space space space space HCO subscript 3 superscript minus straight S to the power of 2 minus end exponent space space space space space space space space space space space space space space space space space space space HS to the power of minus

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