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Lembar Kerja Mahasiswa - Asam Basa
Calculation of pH and pOH for
Acids and Bases
1. Calcitulation of pH and pOH for strong Acids and Bases
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a. calculate H from a solution of strong acid
Strong acids if dissolved in water will be completely ionized. In
strong acid solutions, there are two sources of H , the first source
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is from the ionization of the acid itself and the other is from the
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autoionization of water. The amount of H given by water ([H ]
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from water) is much smaller than the H given by acid ([H ] from
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acid). So the [H ] of water is negligible. Take a look at the
example below!
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b. calculate OH from a solution of strong base
Strong bases if dissolved in water will be completely ionized To
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calculate the [OH ] of a strong base is to calculate the [H ] of a
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strong acid. In an alkaline solution, there are two sources of OH :
the first source is from the ionization of the base itself and the
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other is from the autoionization of water. The amount of OH that
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water gives ([OH ] from water) is much smaller than OH that is
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given base ([OH ] from base). So the [OH ] of water is negligible.
Take a look at the example below!
Bahasa Inggris Kimia (PKIM3139) 32
