Water

Question 1

Hydrophobic

Answer 1

Water- fearing I.e doesn’t dissolve in water

Question 2

Micelle

Answer 2

Spherical arrangement of organic molecules in water solution clustered

Question 3

Strong acid

Answer 3

Proton donor

Question 4

Strong base

Answer 4

Proton acceptor

Question 5

What is the concentration of H ions in pure water ?

Answer 5

10 to power of -7

Question 6

What is the formula for pH

Answer 6

The negative log of [H+]

Question 7

pH ranges from??

Answer 7

0-14

Question 8

What is the pH of an acidic substance

Answer 8

ph<7

Question 9

Which equation is used to calculate the pH of a Buffer solution?

Answer 9

The Henderson-Hasselbalch equation

Question 10

What does pH<pKa indicate?

Answer 10

Weak acid predominates

Question 11

Titration

Answer 11

Measure amounts of acid(or base) are added to the measured amounts of base (or acid)

Question 12

What is the difference between a monoprotic acid and a diprotic acid?

Answer 12

Monoprotic = release one H ion
Diprotic= release 2 H ion

Question 13

What does it mean when the solution is slightly acidic at the equivalence point?

Answer 13

Strong acid forms weak conjugate base therefore making the solution slightly more acidic

Question 14

What is the function of a Buffer?

Answer 14

Resist pH change upon addition of an acidic or basic component

Question 15

How can you “break” a buffer?

Answer 15

If you add more acid than conjugate base you have

Question 16

Buffer effectiveness is determined by

Answer 16

1. Buffer range
2. Buffer capacity

Question 17

What are the biological roles of water?

Answer 17

1. Provide medium for metabolic reactions
2. Essential buffer to regulate temperature and pH
3. Participates in hydrolysis and photosynthesis