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What is the hydronium ion concentration of a solution with a pOH of 7.20?

A - 1.56 × 10^−6 M
B - 1.79 × 10^−6 M
C - 1.58 × 10^−7 M
D - 2.78 × 10^−7 M

I think the correct answer is C, can anyone confirm this?

Respuesta :

JeremyBrooks

Answer:

C - 1.58 × 10^−7 M

Explanation:

The hydroxide ion concentration can be found from the pOH by the reverse mathematical operation employed to find the pOH. [OH-] = 10-pOH or [OH-] = antilog ( - pOH) Page 2 Example: What is the hydroxide ion concentration in a solution that has a pOH of 5.70? On a calculator calculate 10-5.70, or "inverse" log (- 5.70).

The concentration of hydronium ion C) - 1.58 × 10^−7 M

The concentration of hydronium ion

  • if pOH is 7.20 than pH = 14-7.20

                                     ∴pH=6.80

The hydroxide ion concentration can be found from the pOH by the reverse

How do you calculate concentration from pH?

To calculate the pH of an aqueous solution we 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+]

       -log[6.80]

       - 1.58 × 10^−7 M

learn more about  hydronium ion here: https://brainly.com/question/1396185

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