What Is the [H₃O⁺] in a Buffer That Consists of 0.30

question 58

Multiple Choice

What is the [H₃O⁺] in a buffer that consists of 0.30 M HCOOH and 0.20 M HCOONa? [K_a(HCOOH) = 1.7 × 10^-4]

• A) 1.1 × 10^{-4 M}
• B) 2.6 × 10^{-4 M}
• C) 4.3 × 10^{-4 M}
• D) 6.7 × 10^{-5 M}
• E) 1.7 × 10^{-4 M}

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Definitions:

Internal Working Model

A mental model that children construct as a result of their experiences with their caregivers and that they use to guide their interactions with their caregivers and others.

Symbolic Capacities

The ability to understand and use symbols or symbolic thought, including language, numbers, and images.

Reciprocal Emotional Relationship

describes an interpersonal connection where emotional expressions and experiences are shared and influence each other mutually.

Attachment Statuses

Categories that describe patterns of behavior in relationships reflecting the emotional bond between individuals.