Acids and Bases Flashcards
Donates protons
Acid
Accepts protons
Base
Are molecules or substance that has a positive electric charge
Protons
Formed when an acid loses a proton-formed
Conjugate base
When a base accepts a proton
Conjugate acid
A positively charged ion
Cation
A negatively charged ion
Anion
Is an ion that has both positive and a negative charge
Zwitterion
French chemist proposed that all acids contain a common element oxygen.
Antoine Lavoisier
Antoine Lavoisier proposed that all acids contain a common element. What common element is this?
Oxygen
TRUE or FALSE
Oxygen is derived from a Greek phrase meaning “acid former.”
True
Oxygen is derived from a Greek phrase meaning what?
acid former
Showed in 1810 that muriatic acid (now called hydrochloric acid) contains only hydrogen and chlorine but no oxygen
English chemist Sir Humphrey Davy
Muriatic acid is now called?
Hydrochloric acid
TRUE or FALSE
Muriatic acid contains only hydrogen and chlorine and there is oxygen
FALSE
Muriatic acid contains only hydrogen and chlorine BUT NO oxygen
TRUE or FALSE
Davy’s studies suggested that the common element in acids is hydrogen, not oxygen.
TRUE
Who suggested that the common element in acids is hydrogen, not oxygen?
English chemist Sir Humphrey Davy
In 1887, who clarified the relationship between acidic behavior and the presence of hydrogen in a compound?
Swedish chemist Svance Arrhenius (1859-1927)
A substance that dissociates in water to give hydrogen ions (H^+)
An acid
A substance that dissociates in water to give hydroxide ions (OH-)
A base
General formula for metal hydroxide
MOH
Accounts for the properties of many common acids and bases, but it has important limitations.
Arrhenius theory
TRUE or FALSE
Arrhenius theory is restricted to aqueous solutions
TRUE
TRUE or FALSE
Arrhenius theory is open to all aqueous solutions
FALSE
Arrhenius theory is restricted to aqueous solutions
TRUE or FALSE
Arrhenius theory it doesn’t account for the basicity of substances
TRUE
TRUE or FALSE
Arrhenius theory it does account for the basicity of substances
FALSE
Arrhenius theory it DOESN’T account for the basicity of substances
TRUE or FALSE
Arrhenius theory it doesn’t account for the basicity of substances like corona (NH₂) that don’t contain OH groups.
TRUE
In 1923, a more general theory of acids and bases was proposed independently by
Danish chemist Johannes Bronsted and English chemist Thomas Lowry
TRUE or FALSE
According to the Bronsted-Lowry theory, an acid is any substance that can transfer a proton to another substance
TRUE
TRUE or FALSE
According to the Bronsted-Lowry theory, a base is any substance that can accept a proton.
TRUE
TRUE or FALSE
According to the Bronsted-Lowry theory, a base is any substance that can transfer a proton to another substance
FALSE
It should be an acid, not a base
TRUE or FALSE
According to the Bronsted-Lowry theory, an acid is any substance that can accept a proton.
FALSE
It should be a base, not an acid
Any substance that can accept a proton.
A base
Is any substance that can transfer a proton to another substance
An acid
Proton donors
Acids
Proton acceptors
Bases
TRUE or FALSE
Bases are proton donors
FALSE
Bases are proton acceptors
TRUE or FALSE
Acids are proton acceptors
FALSE
Acids are proton donors
Are proton-transfer reactions:
Acid-base reactions
A substance that can transfer H^+
Bronsted-Lowry Acid