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sineoko [7]
3 years ago
6

John has a solution with a pH of 12.21. what is the hydrogen ion concentration of this solution? ​

Chemistry
1 answer:
Georgia [21]3 years ago
5 0

Answer:

  1. In this way, ph is determined by hydrogen ion concentration . In the case of neutral solution [H+] =10-7 which we call a ph of 7. This means, for example, that a hydrogen-ion concentration of a solution with a ph of 4 is 10-4 mol/l, meaning it contains 0.0001 mole of hydrogen ion in a solution of 1 liter.

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Which of the following processes have a ΔS < 0? Which of the following processes have a ΔS < 0? carbon dioxide(g) → carbon
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Answer:

All of the above processes have a ΔS < 0.

Explanation:

ΔS represents change in entropy of a system. Entropy refers to the degree of disorderliness of a system.

The question requests us to identify the process that has a negative change of entropy.

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There is  a change in state from gas to solid. Solid particles are more ordered than gas particles so this is a negative change in entropy.

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propanol (g, at 555 K) → propanol (g, at 400 K)

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methyl alcohol condenses

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3 years ago
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Elena L [17]
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Answer:

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