Ionic EquilibriummediumMCQ SINGLE

In a mixture of a weak acid and its salt, the ratio of concentration of acid to salt is increased teIonic Equilibrium Chemistry Question

Question

In a mixture of a weak acid and its salt, the ratio of concentration of acid to salt is increased ten-fold. The pH of the solution

Answer: A

💡 Solution & Explanation

The solution is an acidic buffer. Since, a salt pH = pK + log acid or a acid pH = pK -log salt If the ratio acid salt increases 10 times log acid salt increases by 1. pH decreases by 1.

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