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headenaddcasulma
headenaddcasulma headenaddcasulma
  • 19-08-2016
  • Chemistry
Answered

The pH level of tomato juice is 4.2. What is the hydrogen-ion concentration [H+] for tomato juice?A. 0.0004 B. 0.0006 C. 0.00004 D. 0.00006

Verified Answer :

Willchemistry
Willchemistry Willchemistry
  • 19-08-2016

pH = 4.2

[H+] = 10 ^- pH

[H+] = 10 ^- 4.2

[H+] = 0.00006 M

Answer D

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taskmasters
taskmasters taskmasters
  • 26-08-2016

The pH of a solution is related to the hydrogen ion concentration in a logarithmic function which is expressed as:

pH = -log[H+]

4.2 = - log [H+]
[H+] = 6.31 x 10^-5 M

Therefore, the correct answer from the choices listed above is option D, 0.00006 M.

Answer Link

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