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kondaur [170]
2 years ago
7

Nguyên tố A có cấu hình electron phân lớp cuối cùng là 4p3. A phải

Chemistry
1 answer:
Studentka2010 [4]2 years ago
4 0

Answer: ?

Explanation: I translated this and It makes no sense.

Tôi đã dịch điều này và nó không có ý nghĩa.

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What is produced at each electrode in the electrolysis of agf(aq)?
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3 years ago
Determine the pH of a solution of 0.00278 M of HClO4. Report the answer to two digits past the decimal.
aleksandrvk [35]

Answer:

The pH of a solution of 0.00278 M of HClO₄ is 2.56

Explanation:

pH is a measure of acidity or alkalinity that indicates the amount of hydrogen ions present in a solution or substance and is calculated as:

pH= - log [H⁺]= - log [H₃O⁺]

On the other hand , a Strong Acid is that acid that in an aqueous solution dissociates completely. In other words, a strong acid completely dissociates into hydrogen ions and anions in solution.

HClO₄ is a strong acid, so in aqueous solution it will be  totally dissociated. Then, the concentration of protons is equal to the initial concentration of  acid and the pH will be calculated:

pH= - log 0.00278

pH= 2.56

<u><em>The pH of a solution of 0.00278 M of HClO₄ is 2.56</em></u>

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3 years ago
Which diagram shows how the particles of the solid substance will look after it has absorbed enough heat to melt partially ??
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Part a draw the major organic product formed when the compound shown below undergoes a reaction with an excess of etoh under aci
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On the picture attached it is shown the reaction of alcohol addition to the carbonyl group with the major organic product <span>formed in the reaction.</span>

7 0
2 years ago
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