20.1 - Bronsted-Lowry Acid & Bases Flashcards Preview

OCR A Chemistry A Level - Chapter 20 > 20.1 - Bronsted-Lowry Acid & Bases > Flashcards

Flashcards in 20.1 - Bronsted-Lowry Acid & Bases Deck (6)
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1

Define:

Bronsted-Lowry acid

Bronsted-Lowry base

Bronsted-Lowry acid

Proton donor

Bronsted-Lowry base

Proton acceptor

2

What is the Arrhenius model of acids and bases?

  • Acids dissociate & release H+ ions into aq solution
  • Alkais dissociate and release OH- ions into aq solution

H+ + OH> H2

  • An alkali is a soluble base

3

What is a conjugate acid base pair?

Give an example

2 species which can be interconverted by the transfer of a proton

HCl and Cl- are known as conjugate acid base pairs

In the forward reaction, HCl releases a proton to form its conjugate base, Cl-

In the reverse, Cl- accepts a proton to form its conjugate acid HCl.

 

4

What is the hydronium ion?

H3O+(aq)

  • In (aq) dissociation,a proton must be transferred from acid to base in the presence of water
  • Water accepts a proton to become its conjugate base (hydronium ion)

5

What are the different neutralisation reactions?

6

What is a:

monobasic

dibasic

& tribasic

acid?

Each term refers to the number of hydrogen in the acid that can be replaced per molecule 

E.g. boric acid, H3BO3 is tribasic