What Is the PH of a Buffer Composed of 0

question 31

Multiple Choice

What is the pH of a buffer composed of 0.35 M H₂PO₄^-(aq) and 0.65 M HPO₄^2-(aq) ? (K_a of H₂PO₄^- is 6.2 × 10^-8)

• A) 6.94
• B) 7.21
• C) 7.48
• D) 7.73
• E) 9.06

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Definitions:

Big Five Dimension

A model that outlines five major dimensions of human personality: openness, conscientiousness, extraversion, agreeableness, and neuroticism.

Holland's RIASEC

A theory of careers and vocational choice based upon personality types, with the six types being Realistic, Investigative, Artistic, Social, Enterprising, and Conventional.

Career Type

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Oregon Vocational Interest Scales

A psychological assessment tool designed to identify an individual's career interests by evaluating their preferences across a wide range of occupations.