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5.1.3 Acids, Bases and Buffers

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

Define a Bronsted- lowry acid

Back (Answer)

Proton donor

#2
Front (Question)

Define a bronsted lowry base

Back (Answer)

proton acceptor

#3
Front (Question)

Define lewis acid

Back (Answer)

electron pair acceptor

#4
Front (Question)

Define lewis base

Back (Answer)

Electron pair donor

#5
Front (Question)

What ion causes a solution to become acidic?

Back (Answer)

H+ (hydrogen ion) H3O+ (oxonium ion) as protons react with H2O to form it

#6
Front (Question)

What ions causes a solution to be alkaline?

Back (Answer)

OH- hydroxide ion

#7
Front (Question)

Write an equation for the ionisation of water

Back (Answer)

2 H2O (l) H3O+ (aq) + OH- (aq) H2O (l) H+ (aq) + OH- (aq)

#8
Front (Question)

Give an example of a monobasic acid

Back (Answer)

HCL

#9
Front (Question)

Give an example of a dibasic acid

Back (Answer)

H2SO4

#10
Front (Question)

Give an example of a tribasic acid

Back (Answer)

H3PO4

#11
Front (Question)

Identify the acid pairs for the reaction below CH3COOH + H2O CH3COO- + H3O+

Back (Answer)

CH3COOH = ACID 1 CH3COO- = BASE 1 H30+ = ACID 2 H2O = BASE 2

#12
Front (Question)

Define strong acid

Back (Answer)

Acids dissociates completely

#13
Front (Question)

Give some examples of strong acids

Back (Answer)

Hydrochloric acid sulfuric acid nitric acid

#14
Front (Question)

What is the difference between concentrated and strong?

Back (Answer)

Concentrated means many mol per dm3. strong refers to the amount of dissociation

#15
Front (Question)

Define weak acids

Back (Answer)

Acids that only partially dissociate

#16
Front (Question)

Give some examples of weak acids

Back (Answer)

Methanoic acid, any organic acid

#17
Front (Question)

What is the constant that is used to measure the extent of acid dissociation called?

Back (Answer)

Acid dissociation constant

#18
Front (Question)

What is the symbol of acid dissociation constant?

Back (Answer)

Ka

#19
Front (Question)

Write the acid dissociation constant expression

Back (Answer)

For acid HA, HA H+ + A- ka = [H+] [A-] / HA

#20
Front (Question)

What does a larger Ka value mean?

Back (Answer)

Larger the Ka. the greater the extent of disccociation

#21
Front (Question)

Write the equation used to convert Ka into pKa

Back (Answer)

pka = -log (Ka)

#22
Front (Question)

Write the equation used to convert pKa into Ka

Back (Answer)

ka = 10 ^-pKa

#23
Front (Question)

What is the relationship between pKa and strength of the acid?

Back (Answer)

Smaller the pKa, stronger the acid

#24
Front (Question)

Write the equation used to convert concentration of H+ into pH

Back (Answer)

pH = -log [H+]