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3 years ago

1. Calculate the pH if the [H3O+] = 6.29 x 10-2 M.

Chemistry

1 answer:

Nataliya [291]3 years ago

4 0

Answer: Hello Luv.......

Find the pH of a 0.0025 M HCl solution. ... The hydronium ion concentration can be found from the pH by the reverse of the ... 8.34 = - log [H3O+].

Explanation:

Calculate the pH of the solutions below. 1. ... a) [H+] = 1.0 x 102 M OH-]= 1 x 10-2M aad ... What is the pH of a 7.98 x 10-2 M solution of HNO3 (nitric acid). ... Find the hydronium ion concentration [H3O+] from the pH of the following solutions.

Hope this helps. Sorry if wrong.

Mark me brainest please.

Anna ♥

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Explanation:

Hello,

In this case, the redox reaction is:

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In such a way, each element has the following oxidation state distribution:

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Thus, it seen that:

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- The reduced element is chromium as its oxidation state changes from 6+ to 3+. In addition, it is the oxidizing agent since it undergoes reduction.

Hence, in order to answer:

- Element oxidized: N.

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- The oxidizing agent: Chromium.

- The reducing agent: Nitrogen.

- Formula of the oxidizing agent: (CrO₄)²⁻

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- name of the element oxidized: nitrogen.

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