The K_a for HCN Is 4

question 97

Multiple Choice

The K_a for HCN is 4.9 × 10^{- 10}. What is the value of K_b for CN^- ?

• A) 4.9 × 10⁴
• B) 2.0 × 10^{- 5}
• C) 2.0 × 10⁹
• D) 4.0 × 10^{- 6}
• E) 4.9 × 10^{- 24}

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Definitions:

Goal Shielding

A cognitive process where focusing on a primary goal helps to block out competing goals, thus avoiding distractions.

Overly Optimistic

Characterized by an excessive belief in the positive outcomes of events or situations, often overlooking the likelihood of negative results.

Plans

Structured approaches or strategies devised to achieve specific goals or objectives.

Goal Shielding

The cognitive process of protecting one's focus and efforts towards a specific goal by minimizing distractions or competing goals.