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MA_775_DIABLO [31]
3 years ago
5

What is Pka of an acid plz define briefly?

Chemistry
1 answer:
Yakvenalex [24]3 years ago
6 0

The term "pKa" is a measure of the strength of an acid in solution. It is defined as the negative base 10 log of the acid dissociation constant. A lower pKa value indicates a stronger acid and A higher pKa value indicates a weaker acid

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3 years ago
A mixture of helium, nitrogen, and oxygen has a total pressure of 752 mm Hg. The
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Answer: The partial pressure of oxygen in the mixture is 321 mm Hg

Explanation:

According to Dalton's law, the total pressure is the sum of individual pressures.

p_{total}=p_{He}+p_{N_2}+p_{O_2}

Given : p_{total} = total pressure of gases = 752 mm Hg

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Hạt nhân của nguyên tử X có điện tích là 30,4.10-19 culông. Tìm số p,e của nguyên tử X

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