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If you know pH, it's easy to calculate pOH because pH + pOH = 14. Sometimes you need to calculate pOH from the hydroxide ion concentration [OH-]. You'll need a calculator here, using the equation pOH = -log[OH-].

To find the pOH, simply subtract the pH from 14. In order to calculate the pOH, take the negative log of the hydroxide ion concentration. To find the pH, simply subtract pOH from 14.

Answer and Explanation: Thus, the pH of the HCl solution is 2.45.

pH is defined by the following equation, pH = \u2212log [H+] , where [H+] denotes the molar hydrogen ion concentration. Notice that we are required to take the common (base 10) logarithm of the hydrogen ion concentration in order to calculate pH.

pH = -log[H+] = -log(0.0235) = 1.629 2) What is the pOH of a 0.0235 M HCl solution?

pH = \u2013 log [OH\u2013] At pOH 7 solution is found to be neutral. In contrast, if the pOH value is less than 7, the solution will be basic, and if the pOH value is more than 7, the solution will be acidic. Both pH and pOH are related to each other. pH is inversely proportional to pOH, i.e. pH increases with decreasing pOH.

In order to calculate the pH, take the negative log of the hydronium ion concentration. To find the pOH, simply subtract the pH from 14. In order to calculate the pOH, take the negative log of the hydroxide ion concentration. To find the pH, simply subtract pOH from 14.

Key Takeaways: How to Calculate pOH If you know pH, it's easy to calculate pOH because pH + pOH = 14. Sometimes you need to calculate pOH from the hydroxide ion concentration [OH-]. You'll need a calculator here, using the equation pOH = -log[OH-].

To calculate the pH of an aqueous solution you need to know the concentration of the hydronium ion in moles per liter (molarity). The pH is then calculated using the expression: pH = - log [H3O+].

2:04 21:09 How To Calculate The pH of a Solution Without a Calculator YouTube Start of suggested clip End of suggested clip So if you know log 2 to log 9. This will be very helpful log 4 according to this table is 0.6. SoMoreSo if you know log 2 to log 9. This will be very helpful log 4 according to this table is 0.6. So the answer is going to be 3 minus 0.6 which is 2.4.