3 years ago

Cómo se expresan las concentraciones en una solución?

Chemistry

1 answer:

11Alexandr11 [23.1K]3 years ago

6 0

yo no ablo espanol pero si ablo English

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<h3>Further explanation</h3>

Given

0.2 mole HCNO

0.8 mole NaCNO

1 L solution

Required

pH buffer

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Acid buffer solutions consist of weak acids HCNO and their salts NaCNO.

$\tt \displaystyle [H^+]=Ka\times\frac{mole\:weak\:acid}{mole\:salt\times valence}$

valence according to the amount of salt anion

Input the value :

$\tt \displaystyle [H^+]=2.10^{-4}\times\frac{0.2}{0.8\times 1}\\\\(H^+]=5\times 10^{-5}\\\\pH=5-log~5\\\\pH=4.3$

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Cómo se expresan las concentraciones en una solución?​

Cómo se expresan las concentraciones en una solución?