The Titration of a Weak Base ( K _b =

question 98

Multiple Choice

The titration of a weak base ( K _b = 1.0×10 ^{- 4}) with HCl requires 40.0 mL to reach the equivalence point. In order to calculate the pH of the system after 20 mL of HCl is added, the best strategy is to recognize that the system is

• A) a strong base
• B) a weak base
• C) a buffer
• D) neutral
• E) a strong acid

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Definitions:

Negative Reinforcement

A behavioral principle where the removal of an unpleasant stimulus strengthens a behavior or increases its likelihood of being repeated.

Content-Specificity

Distinct cognitive content is related to different types of disorders. For example, depression is related to thoughts of deprivation and loss, whereas anxiety is related to themes of threat and potential harm.

Beck's Theory

A theory developed by Aaron T. Beck that primarily focuses on the role of negative cognitive biases and thoughts in the development and maintenance of depression.