Strong and weak acids and bases

Question 1

Define Bronsted Lowry bases and acids

Answer 1

Acid: donates a H plus ion, or proton
Base: Receives proton

Question 2

Define Lewis acid and bases

Answer 2

Acid: Receives electron pair
Base: donates electron pair
Think of Lewis bond

Question 3

What is Kw and how do you calculate it?

Answer 3

The equilibrium constant at a certain temperature. It is calculated by the conc of H plus multiplied by the conc of OH minus(both in Mol/dm cubed

Question 4

What is the pH scale

Answer 4

A measure of number of H plus ions in a thing:

pH=-log(conc of H plus)

Question 5

Define electrolytes

Answer 5

A substance that dissolves in water to produce ions(and thus conduct)

Question 6

Difference between strong, concentrated and corrosive

Answer 6

strong: Completely disassociated into ions
Concentrated: High number of moles per dm cubed
Corrosive: Chemically reactive

Question 7

Colour of Phenolphalein and Methyl orange across pH

Answer 7

Phenol: colourless in acidic, pink in basic
Methyl: Red in acid, yellow in base

Question 8

Acid plus hydroxide reacts to produce?

Answer 8

Salt and water

Question 9

Acid plus metal oxides react to become?

Answer 9

Salts and water

Question 10

Acid with ammonia reacts to become?

Answer 10

salt

Question 11

Acids and reactive metals react to become?

Answer 11

Salt, and hydrogen(and water in solution)

Question 12

What is a test of acid using reactions?

Answer 12

React with carbonate: produces salt, CO2 and water

React with hydrogen carbonate: produces salt, Co2 and water

Question 13

What is a conjugate acid-base pair?

Answer 13

A pair of species that differ by one H plus ion