Unit 3 Acids and Bases Flashcards
(24 cards)
Sour taste
Acids
Bitter taste
Based
Slippery feel
Bases
Turns litmus paper blue
Bases
Form electrolytic solutions
Acids and Bases
Turns litmus paper red
Acids
Reacts with active metals to produce H2 (g)
Acids
Arrhenius’s definition of Acid
Produce hydrogen ions in solution
Arrhenius’s definition of base
Produce hydroxide ions in solution
Brønsted-Lowry definition of acid
Proton donor
Brønsted-Lowry definition of base
Proton acceptors
Define amphoteric and an ex
A substance having the ability to act as both a base and an acid in different reactions. Ex. Water
How to write conjugate acid
Add an H and add charge
How to write conjugate base
Remove an H
Define strong Acid
Strong electrolytes and ionize 100% in aqueous solutions. No value for their Ka
Define weak acids
Weak electrolytes and don’t ionize 100% in aqueous solution. Ka has a number
How to determine if it’s a strong Acid
If it’s very large it is a strong acid and breaks down completely (disassociation equation). Balanced equation and then ratios.
How to determine if it’s a weak acid
We will be given the Ka and it will not completely disassociate. Use Ka formula and then square root
How to determine which part is the base
Will have OH, group 1 and 2 of the periodic table will be strong
What is phenolphthalein
A chemical compound often used as an indicator. Turns bases pink
Provide 3 conceptual definitions of acids and bases
Arrhenius
Lowry
Lewis
Electrolytes
Acid and base
Reacts with metal to produce H2 gas
Acids
Corrosive
Both
