pmt acids and bases

Question 1

Define a Bronsted-Lowry acid

Answer 1

Proton donor

Question 2

Define a Bronsted-Lowry base

Answer 2

Proton acceptor

Question 3

What ion causes a solution to be acidic? (2 answers) Name and formula

Answer 3

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

Question 4

What ion causes a solution to be alkaline?

Answer 4

-OH (hydroxide ion)

Question 5

Write an equation for the ionisation of water (2)

Answer 5

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

Question 6

Derive Kw using the equation for ionisation of water