Using a calculate the following parameters and fill-in the spaces provided. [H^+

Question

Using a calculate the following parameters and fill-in the spaces provided. [H^+] and [OH^-] a) Calculate [H^+] of a solution whose [OH] = 2.5 times 10^-4 M b) Calculate [OH^-] of a solution whose [H^+] = 0.00375 M [H^+] and pH a) Calculate the pH of a solution whose [H^+] = 1 times 10^6M _______ b) Calculate the pH of a solution whose [H^+] = 6.65 times 10^-3 M _______ c) Calculate the [H^+] of a solution whose pH = 2.68 _______ [OH^-] and pOH a) Calculate the pOH of a solution whose [OH] 4.25 times 10^-4 M _______ b) Calculate the [OH^-] of a solution whose pOH = 1.14 _______ c) Calculate the pH of a solution whose pOH = 12.00 _______ d) Calculate the pH of a solution whose pOH = 3.88 _______ pH and [OH^-] a) Calculate the pH of a solution whose [OH] = 0.0000015 M _______ b) Calculate the [OH^-] of a solution whose pH = 3.00 _______ c) Calculate the [OH^-] of a solution whose pH = 10.23 _______

Explanation / Answer

1)

a) [H+] [OH-] = [1.0x10-14] M

[H+] =  [1.0x10-14] M /[OH-]

[H+] =  [1.0x10-14] / 2.5 x 10-4

[H+] = 4.0 x 10-11 M

b) [H+] [OH-] = [1.0x10-14] M

[OH-] =  [1.0x10-14] / [H+]

[OH-] = [1.0x10-14] / 0.00375

[OH-] = 2.67 x 10-12 M

2)

a) pH = - log [H+]

pH = - log [1 x 10-6]

pH = 6.0

b) pH = - log [6.55 x 10-3]

pH = 2.18

c) pH = 2.68

[H+] = 10-pH

[H+] = 10-2.68

[H+] = 2.09 x 10-3M

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