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olga2289 [7]
3 years ago
9

What do you mean ph meaning​

Chemistry
2 answers:
skelet666 [1.2K]3 years ago
8 0
I thought wrong at first
vladimir2022 [97]3 years ago
4 0
PH is a measure of hydrogen ion concentration, a measure of the acidity or alkalinity of a solution.
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(a) ions in a certain volume of .20M NaCl (aq) are represented in the box above on the left. in the box above on the right, draw
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Answer:

  • The first picture attached is the diagram that accompanies the question.

  • The<u> second picture attached</u> is the diagram with the answer.

Explanation:

In the box on the left there are 8  Cl⁻ ions and 8 Na⁺ ions.

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The dissociation equation for CaCl₂ (aq)  is:

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A 0.10MCaCl₂ (aq) solution will have half the number of CaCl₂ units as the number of NaCl units in a 0.20M NaCl (aq) solution.

Thus, while the 0.20M NaCl (aq) solution yields 8 ions of Na⁺ and 8 ions of Cl⁻, the 0.10MCaCl₂ (aq) solution will yield 4 ions of Ca²⁺ (half because the concentration if half)  and 8 ions of Cl⁻ (first take half and then multiply by 2 because the dissociation reaction).

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