Acids Bases And Salts

Question 1

Brønsted-Lowry acid what is it

Answer 1

A proton donor

Question 2

What is a strong Brønsted-Lowry acid?

Answer 2

It’s a proton donor that completely dissociates

Question 3

What is a weak Brønsted-Lowry acid

Answer 3

A proton donor that only partially dissociates

Question 4

Give an equation of a Brønsted-Lowry acid

Answer 4

HA ⇌ H+ + A-

Question 5

Give an equation of a strong Brønsted-Lowry Lowry acid

Answer 5

HA -> H+ + A-

Question 6

Give an equation of a weak Brønsted-Lowry acid

Answer 6

HA ⇌ H+ + A-

Question 7

pH of a strong acid

Answer 7

pH<1

Question 8

PH of a weak acid

Answer 8

PH > 1

Question 9

What are 3 strong acids and their formulas

Answer 9

Hydrochloric acid = HCl
Sulfuric acid = H2SO4
Nitric acid = HNO3

Question 10

What are three weak acids and there formula?

Answer 10

Ethanoic acid = CH3COOH
Benzoic acid = C6H5COOH
Phenol = C6H5OH

Question 11

What does the strength of an acid depend on ?

Answer 11

Strength of an acid is proportional to the disassociation of the acid in water and however much H+ we get that defines how strong the acid is going to be.

Question 12

What is meant by a Brønsted-Lowry base

Answer 12

They are proton acceptors

Question 13

Give an equation of a Brønsted-Lowry base

Answer 13

OH- + H+ -> H20

Question 14

What is meant by alkali

Answer 14

An alkali is something that releases OH- into a solution

Question 15

Give an equation of an alkali and then simplify it

Answer 15

NaOH + H20 -> H20 + OH- + Na+

NaOH -> Na+ + OH-

Question 16

Define what is meant by a salt

Answer 16

Salt is when H+ in an acid is replaced by a metal ion / ammonium ion

Question 17

Give two examples of a salt

Answer 17

NaOH + HCl -> NaCl + H2O

NH3 + H2SO4 -> (NH4)2SO4

Question 18

What is NH3 an example of

Answer 18

Ammonia would be an example of a weak alkali

Question 19

What would NaOH be an example of.

Answer 19

Sodium hydroxide would be an example of a strong alkali

Question 20

Define what is meant by monobasic / monoprotic acid

Answer 20

Monobasic acid releases one mole of protons

Question 21

Write an equation for the dissociation using HCL

Answer 21

HCl -> H+ + Cl-

Question 22

Define what is meant by a dibasic / diprotic acid

Answer 22

Dibasic acid release two moles of protons

Question 23

make an equation of a dibasic disassociation using the example H2SO4

Answer 23

H2SO4 -> H+ + HSO4-
HSO4 -> H+ + SO4-2

Question 24

Define what is meant by a tribasic/triprotic acid

Answer 24

A tribasic acid releases 3 moles of protons

Question 25

Write an equation for a tribasic disassociation using the example H3PO4

Answer 25

H3PO4 -> H+ + H2PO4-
H2PO4 -> H+ + HPO4 2-
HPO4 -> H+ + PO4 3-

Question 26

Write the reaction between an acid and metal
Then Input HCl reacting with Mg
Including state symbols
What are the observations

Answer 26

Acid + metal -> salt + hydrogen
2HCl (aq) + Mg (s) -> MgCl2 (aq) + H2 (g)

Observations = solid dissolves

Question 27

Write the reaction between an acid and a metal oxide
Then substitute HCL and CaO in
Add state symbols
What are the observations

Answer 27

Acid + metal oxide -> salt + water

2HCl (aq) + CaO (s) -> CaCl2 (aq) + H2O (l)

Observations = fizzing + solid dissolves

Question 28

Write the reaction between an acid

Question 29

Write the reaction between an acid