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What is the pKb value of a weak base?
What is the pKb value of a weak base?
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Practice Questions
1 question
Q1
What is the pKb value of a weak base?
Less than 7
Equal to 7
Greater than 7
None of the above
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A weak base has a pKb value greater than 7.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the pKb value of a weak base?
Solution:
A weak base has a pKb value greater than 7.
Steps: 5
Show Steps
Step 1: Understand what a weak base is. A weak base is a substance that does not completely ionize in water.
Step 2: Know that pKb is a measure of the strength of a base. It is the negative logarithm of the base dissociation constant (Kb).
Step 3: Remember that the pKb value indicates how well a base can accept protons (H+).
Step 4: Recognize that strong bases have low pKb values (usually less than 7), while weak bases have higher pKb values.
Step 5: Conclude that since weak bases do not ionize completely, their pKb values are greater than 7.
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