15 Questions
What is a hydrogen ion?
A proton
Which of the following statements is true about the pH scale?
The higher the pH, the stronger the acid
What happens to a strong acid like HCl when mixed with water?
It dissociates into hydrogen ions and chloride ions
How does a strong base differ from a weak base in terms of dissociation?
Strong bases dissociate more completely than weak bases
What does a substance with a low pH indicate?
It is a strong acid
What defines an acid according to its behavior in water?
It donates hydrogen ions
Which ion characterizes a hydrogen ion (proton)?
$H^+$
What is the difference between a strong acid and a weak acid?
Strong acids dissociate more easily than weak acids.
How is the acidity constant (Ka) helpful in measuring an acid's ability to donate a hydrogen ion?
Ka shows how likely a substance is to donate a hydrogen ion.
How is pKa calculated and what does a lower pKa value indicate?
pKa is calculated by taking the negative log of Ka; a lower pKa indicates a stronger acid.
What happens when an acid donates a proton?
It becomes a conjugate base.
Which of the following is NOT a strong acid?
(CH3CH2)2NH - Diethylamine
What differentiates strong bases from weak bases?
Weak bases do not dissociate completely like strong bases.
Why is it important to differentiate between strong and weak acids and bases?
To understand their effect on blood pH regulation.
"Buffer" solutions play a key role in maintaining blood pH stability. What is the function of buffers?
Buffers prevent rapid changes in pH by absorbing excess H+ or OH- ions.
Explore the concepts of weak acids, bases, hydrogen ions, and the pH scale in this quiz. Learn about the characteristics of acids and bases, as well as how they interact with water. Test your knowledge on the strength of acids and bases based on the pH scale.
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