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Calculating Hydrogen Ion Concentration from pH
On the calculation of hydrogen ion concentration and pH value
The calculation of hydrogen ion concentration and pH value is really the way to go.
pH, the size of its value, indicates the degree of acid and base in the solution. And the concentration of hydrogen ions is closely related to the pH value. There is a way to calculate the concentration of hydrogen ions from the pH value.
Let the pH value of the solution be\ (pH\), then the relationship between the concentration of hydrogen ions\ ([H ^{+}]\) and pH value can be expressed as\ ([H ^ {+}] = 10 ^ {-pH}\). This formula is based on the logarithmic principle.
If the pH of a solution is\ (3\), according to the above formula, the hydrogen ion concentration\ ([H ^ {+}] = 10 ^ {-3} mol/L\). This means that the solution contains hydrogen ions\ (10 ^ {-3}\) moles per liter.
For another example, if the pH of the solution is\ (5.5\), the hydrogen ion concentration\ ([H ^ {+}] = 10 ^ {-5.5} mol/L\) can be obtained by calculating\ ([H ^ {+}]\ approx3.16\ times10 ^ {-6} mol/L\).
On the contrary, if the concentration of hydrogen ions is known, its pH value can also be calculated. That is,\ (pH = -\ lg [H ^{+}]\) 。
Knowing this, in chemical experiments, industrial production and other fields, measuring the acid and alkali of the solution and adjusting its properties can be relied on, so as not to be confused. It is the foundation of chemistry and the key to application.
The calculation of hydrogen ion concentration and pH value is really the way to go.
pH, the size of its value, indicates the degree of acid and base in the solution. And the concentration of hydrogen ions is closely related to the pH value. There is a way to calculate the concentration of hydrogen ions from the pH value.
Let the pH value of the solution be\ (pH\), then the relationship between the concentration of hydrogen ions\ ([H ^{+}]\) and pH value can be expressed as\ ([H ^ {+}] = 10 ^ {-pH}\). This formula is based on the logarithmic principle.
If the pH of a solution is\ (3\), according to the above formula, the hydrogen ion concentration\ ([H ^ {+}] = 10 ^ {-3} mol/L\). This means that the solution contains hydrogen ions\ (10 ^ {-3}\) moles per liter.
For another example, if the pH of the solution is\ (5.5\), the hydrogen ion concentration\ ([H ^ {+}] = 10 ^ {-5.5} mol/L\) can be obtained by calculating\ ([H ^ {+}]\ approx3.16\ times10 ^ {-6} mol/L\).
On the contrary, if the concentration of hydrogen ions is known, its pH value can also be calculated. That is,\ (pH = -\ lg [H ^{+}]\) 。
Knowing this, in chemical experiments, industrial production and other fields, measuring the acid and alkali of the solution and adjusting its properties can be relied on, so as not to be confused. It is the foundation of chemistry and the key to application.
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