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When the ph of an aqueous solution is changed from 1 to 2, the concentration of hydronium ions in the solution is.

User MichaelH
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1 Answer

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17 votes

Answer:

decreased by a factor of 10

Step-by-step explanation:

pH is defined in such a way that;

pH= −log10(H)

Where H represents the concentration of Hydronium or Hydrogen ions

Given that pH is changed from 1 to 2,

By rearranging the above formula , we get 10−pH = H

  • if pH=1,H=10−1=0.1M
  • if pH=2,H=10−2=0.01M

Therefore, 0.1/0.01 = 10 and 0.1 > 0.01

Hence, the concentration of hydronium ions in the solution is decreased by a factor of 10

User Doro
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