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Acids Bases and Buffers - 5

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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)

Oxonium ion

#6
Front (Question)

What causes a solution to become alkaline

Back (Answer)

-OH

#7
Front (Question)

Write an equation for the ionisation of water

Back (Answer)

2H20 —> H+ + OH-

#8
Front (Question)

Define strong acid

Back (Answer)

Dissociate completely in water

#9
Front (Question)

Name 3 strong acids

Back (Answer)

Hydrochloric acid Sulphuric acid Nitric acid

#10
Front (Question)

Define weak acids

Back (Answer)

Acids that only partially dissociate

#11
Front (Question)

Name 2 weak acids

Back (Answer)

Methanoic acid Any organic acid

#12
Front (Question)

What is the symbol of acid dissociation constant

Back (Answer)

Ka

#13
Front (Question)

Write the acid dissociation constant expression

Back (Answer)

Ka = [H+] [A-] / [HA]

#14
Front (Question)

What does a larger Ka value mean

Back (Answer)

Larger the Ka - greater the extent of dissociation

#15
Front (Question)

Write the equation used to convert Ka into pKa

Back (Answer)

pKa = -log(Ka)

#16
Front (Question)

Write the equation used to convert pKa into Ka

Back (Answer)

Ka = 10^-pKa

#17
Front (Question)

What is the relation ship between pKa and the strength of an acid

Back (Answer)

Smaller the pKa, the stronger the acid

#18
Front (Question)

Write the equation used to convert concentration into pH

Back (Answer)

pH = -log[H+]

#19
Front (Question)

Write the equation used to convert pH into h+ conc

Back (Answer)

[H+] = 10 ^ -pH

#20
Front (Question)

Write the equation used to calculate [H+] of weak acids

Back (Answer)

[H+] = √(Ka * [HA])

#21
Front (Question)

Write the expression for the ionic product of water

Back (Answer)

Kw = [H+] [OH-]

#22
Front (Question)

What is the units for Kw

Back (Answer)

mol2 dm-6

#23
Front (Question)

What is the value of Kw at 298K

Back (Answer)

1 x10^-14

#24
Front (Question)

What physical factors affect Kw

Back (Answer)

Only temperature