A 236-G Sample of an Acid,H₂X,requires 45

question 1

Multiple Choice

A 2.36-g sample of an acid,H₂X,requires 45.0 mL of a 0.500 M NaOH solution for complete reaction (removing both protons) .The molar mass of the acid is:

• A)105
• B)255
• C)232
• D)210
• E)none of these

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Definitions:

pKa

A measure of the acidity of a hydrogen atom in a molecule, indicating the strength of an acid in solution.

Increasing Acidity

A condition or process where the concentration of hydrogen ions in a solution increases, often affecting the substance's pH.

Weak Acids

Acids that only partially dissociate in solution, resulting in a weak conductivity and not completely donating their hydrogen ions.

Strongest Acid

Refers to the acid with the lowest pH or the highest propensity to donate a proton in a reaction.