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suter [353]
3 years ago
10

Which statement is correct? A. pKa is not an indicator of acid strength. B. An acid with a small Ka is stronger than an acid wit

h a large Ka. C. An acid with a large pKa is stronger than an acid with a small pKa. D. An acid with a small pKa is stronger than an acid with a large pKa.
Chemistry
2 answers:
Svetradugi [14.3K]3 years ago
3 0

Answer:

D

Explanation:

Since [pKa = - log Ka]....hence..,the larger the Ka value,the stronger the acid is..so this means that the pKa is vice versa

Saying that the smaller the pKa value..the stronger the acid is.

Fantom [35]3 years ago
3 0

Answer:

D) An acid with a small pKa is stronger than an acid with a large pKa

Explanation:

Hi, the acity constant (Ka) gives an idea of the strenght of an acid. The higher the Ka, the stronger the acid.

The indicator pKa is obtained by the following formula:

pKa=-\log{Ka}

Due to the logarithm, when the Ka increases, the pKa decreases.

<u>Putting all this toghether</u>: An acid with a large Ka has a small pKa and is stronger than an acid with a small Ka (large pKa).

So the correct statement is D

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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:

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