zakiyahjones0890

27.06.2019 • 

Chemistry

Which best describes the two types of shared characteristics? 1 - characteristics that remain in the common ancestor and the modern organism 2 - characteristics that are new and have been modified from what was found in the common ancestor 1 - characteristics that are new in the common ancestor and the modern organism 2 - characteristics that have been modified from what was found in the common ancestor 1 - characteristics that have been modified in the common ancestor but not in the modern organism 2 - characteristics that are new in both the common ancestor and the modern organism 1 - characteristics that remain in the common ancestor and the modern organism 2 - characteristics that are new in both the common ancestor and the modern organism

Ответ:

mrguyman

15.11.2022

Chemistry

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[H⁺] = 2.57x10⁻⁶ M

Explanation:

This problem can be solved using the definition of pH:

pH = -log[H⁺]

Now we isolate [H⁺] in the equation:

-pH = log[H⁺]

=[H⁺]

As we are given the pH by the problem, we can now proceed to calculate the [H⁺]:

[H⁺] =

[H⁺] = 2.57x10⁻⁶ M

Thus, when the pH of a solution is 5,59; the molar concentration of H⁺ species is 2.57x10⁻⁶.

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