Question
Asked Nov 29, 2019
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Calculate the pH of a solution in which [OH−]=7.1×10−3M.

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Expert Answer

Step 1

The pH of a given solution can be termed as a measure of its basicity or acidity. It is a measure of the concentration of the hydrogen or the hydronium ions which are present in the given solution. More the pH of a given solution, more will be its basicity, and lesser the pH of a given solution, more will be its acidity. The pH value less than 7 is considered to be acidic, at 7, the pH is neutral while the pH values greater than 7 defines the alkaline nature of a given substance.

Step 2

The pOH of a given solution can be defined as the measure of the concentration of the hydroxide ions that are present in it. It is mainly used to express the alkalinity of the given solution. It can be calculated as follows:

РОН-1og[ОН"]
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РОН-1og[ОН"]

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Step 3

In the given problem, the concentration of the hydroxide ions which means [OH-] is given to be 7.1&...

РОН-1og[ОН" ]
-log(7.1x 103)
=2.148
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РОН-1og[ОН" ] -log(7.1x 103) =2.148

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