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Practice Strength of acid and base Learn Introduction to pH Strong and weak acids/bases

This unit examines the role of chemical equilibrium in acid–base chemistry. Learn about pH and pOH, weak acids and bases, buffers, acid–base titrations, and more.

Acid/base refers to the chemical nature of a substance and its ability to donate or accept hydrogen ions. By using these terms precisely, we can avoid confusion and better understand the chemical behavior …

In aqueous solution, an acid is defined as any species that increases the concentration of H + (a q) , while a base increases the concentration of OH (a q) . Typical concentrations of these ions in …

The Henderson-Hasselbalch equation takes as inputs the concentrations of the acid and base to determine the pH of the solution (along with the pKa). In this problem we don’t have that; instead we …

Salts that form from a strong acid and a weak base are acid salts, like ammonium chloride (NH4Cl). Salts that form from a weak acid and a strong base are basic salts, like sodium bicarbonate (NaHCO3).

If the acid is in excess, the pH can be determined from the concentrations of HA and A⁻ after the reaction. If the base is in excess, the pH can be determined from the concentration of excess OH⁻.

We can identify acidic and basic solutions using their distinct and often contrasting properties, some of which you are likely familiar with! The strength of an acid or base can also vary and depends on how …

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