By how much would the oxidising power of the couple change if the H+ ions concentration is decreased 100 times?
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Oxidization reaction happens when H+ ions react with another anion and gets reduced to a bonded atom status.
When the concentration of H+ ions is reduced to 1/100 th of its concentration, then oxidizing power is also reduced by that amount. As the oxidizing power and ion activity is dependent on [ H+ ]. On a logarithm scale, the pH will be changed two times. So power becomes half on pH scale.
When the concentration of H+ ions is reduced to 1/100 th of its concentration, then oxidizing power is also reduced by that amount. As the oxidizing power and ion activity is dependent on [ H+ ]. On a logarithm scale, the pH will be changed two times. So power becomes half on pH scale.
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