What Is the PH of a 0

question 79

Multiple Choice

What is the pH of a 0.33 M solution of methylamine (CH₃NH₂,K_b = 4.4 × 10^-4) at 25^oC? (K_w = 1.01 × 10^-14)

• A) 5.56
• B) 0.48
• C) 12.07
• D) 13.52
• E) 1.93

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Definitions:

Hypothetical Proposition

A statement or proposition based on hypothesis rather than firm evidence, used in logical and philosophical arguments.

Converse

In logic and mathematics, the converse of a statement is formed by reversing its terms and predicate, often producing a different statement.

Disjunctive Proposition

A statement that uses 'or' to connect two or more alternatives, where at least one must be true.

Categorical Proposition

A type of logical statement that asserts or denies something about all members of a category.