Consider a Solution Made by Mixing HCN (K_a = 6 $\times$

question 111

Multiple Choice

Consider a solution made by mixing HCN (K_a = 6.2 $\times$ 10^-10) with HC₂H₃O₂ (K_a = 1.8 $\times$ 10^-5) in aqueous solution.What are the major species in solution?

• A)H⁺,CN^-,H⁺,C₂H₃O₂^-,H₂O
• B)HCN,H⁺,C₂H₃O₂^-,H₂O
• C)H⁺,CN^-,HC₂H₃O₂,H₂O
• D)H⁺,CN^-,H⁺,C₂H₃O₂^-,OH^-,H₂O
• E)HCN,HC₂H₃O₂,H₂O

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Definitions:

Certain Events

Specific occurrences or happenings that are distinct and can be identified.

Probability

Is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

Certainty

A state of being sure or confident about something without any doubt.

Uncertainty

The state of being unsure or not having all the information, which makes outcomes unpredictable.