Mixtures... Flashcards
What is an acid?
A substance that donates protons (H+) in a solution.
What is a base?
A substance that accepts protons (H+) or donates hydroxide ions (OH-) in a solution.
True or False: All acids are sour in taste.
True.
What is the pH scale range for acids?
0 to 6.9.
What is the pH scale range for bases?
7.1 to 14.
Fill in the blank: A solution with a pH of 7 is considered __________.
neutral.
What is the definition of a strong acid?
An acid that completely dissociates in solution.
Give an example of a strong base.
Sodium hydroxide (NaOH).
What is the conjugate base of hydrochloric acid (HCl)?
Chloride ion (Cl-).
True or False: Acids can turn litmus paper blue.
False.
What does the term βneutralizationβ refer to?
The reaction between an acid and a base to produce water and a salt.
What is the formula for calculating pH?
pH = -log[H+].
What is a buffer solution?
A solution that resists changes in pH when small amounts of acid or base are added.
Multiple Choice: Which of the following is a weak acid? a) HCl b) CH3COOH c) NaOH
b) CH3COOH.
What is the role of water in acid-base reactions?
Water acts as a solvent and can also act as an acid or a base.
What is an acid?
A substance that donates protons (H+) in a solution.
What is a base?
A substance that accepts protons (H+) or donates hydroxide ions (OH-) in a solution.
True or False: All acids are sour in taste.
True.
What is the pH scale range for acids?
0 to 6.9.
What is the pH scale range for bases?
7.1 to 14.
Fill in the blank: A solution with a pH of 7 is considered __________.
neutral.
What is the definition of a strong acid?
An acid that completely dissociates in solution.
Give an example of a strong base.
Sodium hydroxide (NaOH).
What is the conjugate base of hydrochloric acid (HCl)?
Chloride ion (Cl-).
