Calculate the PH of a 0

question 4

Multiple Choice

Calculate the pH of a 0.400 mol L^-1 solution of formic acid, K_a = 1.8 × 10^-4.

• A) 3.71
• B) 3.44
• C) 2.29
• D) 4.00
• E) 2.07

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Definitions:

Neutrons

Neutral particles found in the nucleus of an atom, contributing to the atom's mass but not its charge.

Protons

Positively charged subatomic particles found in the nucleus of an atom.

Amu

Atomic Mass Unit, a unit of mass used to express atomic and molecular weights, equivalent to one twelfth of the mass of a carbon-12 atom.

Valence Shells

The outermost shell of electrons in an atom, which determines how the atom interacts chemically with other atoms.