Complete the tables of value for four aqueous solutions at 25 celcius

There are a total of four parameters you need to know to determine the pH of the solution. The pH and the pOH are negative logarithms of the concentrations of the ions H+ and OH-, respectively. These ions are the solvated ions of in an acid-base reaction. The equations are as follows:

pH = -log [H+]
pOH = -log [OH-]

Lastly, the pH range is from 1 to 14. So, it is easier to remember that pH + pOH is equal to 14. So, we use these three equations for the solutions.

Solution A:
pH = -log(6.4×10^-13) = 12.2
pOH = 14 - 12.2 = 1.8
1.8 = -log[OH-]
[OH-] = 0.016 M

Solution B:
pOH = -log(2.7×10^-10) = 9.6
pH = 14 - 9.6 = 4.4
4.4 = -log[H+]
[H+] = 3.98×10^-5 M

Solution C:
8.11 = -log(H+)
H+ = 7.76×10^-9
pOH = 14 - 8.11 = 5.89
5.89 = -log[OH-]
[OH-] = 1.288×10^-6 M

Solution D:
pH = 14 - 4.73 = 9.27
9.27= -log[H+]
[H+] = 5.37×10^-10 M
4.73 = -log[OH-]
[OH-] = 1.862×10^-5 M

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