Chemistry - Ionic Equilibrium Question with Solution | TestHub

ChemistryIonic EquilibriumMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasynumerical

The pH of a solution is 5.0. To this solution sufficient acid is added to decreases the pH to 2.0. The no. of times the concentration of H⁺increased is

Answer:

1000.00

Solution:

$[H_{3} O^{+}]$ before the addition of acid is

$[H_{2} O^{+}]_{i n i t i a l} = 1 0^{- p H} = 1 0^{- 5} M$

$[H_{3} O^{+}]_{f i n a l} = 1 0^{- 2} M$

So $\frac{[H_{3} O^{+}]_{f i n a l}}{[H_{3} O^{+}]_{i n i t i a l}} = \frac{1 0^{- 2} M}{1 0^{- 5} M}$

$= 1000$ times

Stream:NTA_ABHYASSubject:ChemistryTopic:Ionic EquilibriumSubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: PYQ_2020

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