week 3 water

Question 1

Is water polar or nonpolar (what does it dissolve)?

Answer 1

Polar

dissolves polar and ionic

Question 2

Properties of liquid water

Answer 2

bond break and form in an irregular membrane

Question 3

Properties of solid water

Answer 3

bonds form crystalline array

Question 4

Self Ionisation of water

Answer 4

2H2O <-> H3O+ and OH-

Question 5

Hydronium

Answer 5

H3O+

Hydrated H+ ions
Acid

Question 6

Hydroxide

Answer 6

OH-

Base

Question 7

Acids

Answer 7

Donate Proton/ Hydrogen (H+ is generated in a reaction)

Question 8

Bases

Answer 8

Accept Proton/Hydrogen (H+ is removed in a reaction)

Question 9

Conjugate Base

Answer 9

Acid after donating H/Proton

Question 10

Conjugate Acid

Answer 10

Base after accepting H/Proton

Question 11

Acid Dissociation Constant

Answer 11

Ka

High value - Stong Acid
Low Value - Weak Acid

Question 12

pH equation

Answer 12

pH = -log[H+]

[H+] = 10^(-pH)

Question 13

pOH scale relationship with pH

Answer 13

pOH scale is the revers of the pH scale

Question 14

Henderson-Hasselbalch Equation

Answer 14

pH=-pKa + Log[A-]/[HA]

[A-]/[HA] - Ratio Base to Acid