16 Questions
What is the formula for pH?
$pH = -log[H^+]$
In neutral water at 25°C, what is the value of pH?
7.00
What is the relationship between pH and pOH?
$pH + pOH = 14$
What is the significance of using pH meters over indicators for measuring pH?
pH meters provide more precise results than indicators
What is the composition of a buffer?
A weak acid and its conjugate base
What is the formula for the Ka expression?
$Ka = \frac{[H^+][X^-]}{[HX]}$
What is the Henderson-Hasselbalch equation used for?
To calculate the pH of a buffer solution
What determines the buffer capacity?
The relative concentrations of the weak acid and its conjugate base
What happens to the pH of a buffer when a small amount of OH- is added?
The pH remains more or less constant
What is the result of adding a strong acid to a buffer?
The pH remains more or less constant
What is the result of adding a strong base to a buffer?
The pH remains more or less constant
What does the Henderson-Hasselbalch equation take into account?
The concentrations of both the weak acid and its conjugate base
What is the buffer capacity at its best when?
When the concentration of the weak acid is equal to the concentration of the weak base
What does the addition of a strong acid or base to a buffer result in?
A neutralization reaction
What does the pOH measure?
The concentration of OH- ions
What does the buffer solution resist?
A drastic change in pH
Test your knowledge of acids, bases, and buffers in medicine with this quiz. Explore the pH scale, buffered solutions, and the Henderson-Hasselbalch equation. Sharpen your understanding of essential chemistry concepts for medical applications.
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