¹⁰ː pH

Question 1

pH is the measure of what?

Answer 1

the measure of acidity or alkalinity of a solution

Question 2

The more free **HYDROGEN IONS **there are in a solution, the _____ the pH

Answer 2

LOWER

⬆H⁺ion ⁼ ⬇ pH

Question 3

a solution with a pH _____ is considered to be NEUTRAL

Answer 3

pH ^of 7

Question 4

What is the pH of WATER?

Answer 4

pH ⁼ 7

Question 5

write the EQUILIBRIUM equation that expresses the relationship between WATER and HYDROGEN ions

Answer 5

H₂O ^⇄ H⁺** + OH **^-

Question 6

**ACID **solution has a pH of _____

Answer 6

pH < 7

Question 7

ALKALINIC solution has a pH of _____

Answer 7

pH > 7

Question 8

the **pH **of a **STRONG ACID **= _____

Answer 8

pH ^<em>=</em>0

Question 9

the pH of a STRONG BASE ​= _____

Answer 9

pH ^{<em>= </em>}14

Question 10

This TERM is used to **identify the amount of H⁺ ions **in a solution

Answer 10

Molar [M]* *concentration

of ACIDS

^(ex:) *0.1 *M solution* *contains

1 x 10^-1 **hydrogen ions

Question 11

an **ACID **solution will _____ proton

Answer 11

**DONATES **

protons

Question 12

an ALKALINIC solution will _____ proton

Answer 12

**ACCEPTS **

protons

Question 13

DEFINE:

pH ⁼ pKa

Answer 13

It is the point at which:

1. half the compound is **PROTONATED **^{<em>[<u>IONIZED</u>]</em>} &
2. half is UN-PROTONATED ^{<em>[<u>UNIONIZED</u>]</em>}
3. IONIZED ⁼ UN-IONIZED
4. any time you get a pKa refers to ACID losing protons to give the BASE form

Question 14

When** pH >** pKa:

1. MORE of the ACID _______
2. MORE of the **CONJUGATED BASE ** _____

Answer 14

1. MORE of the ACID is ionized
2. MORE of the CONJUGATED BASE is un-ionized

Question 15

When pH < pKa:

1. MORE of the ACID is _____
2. MORE of the CONJUGATED BASE is _____

Answer 15

1. MORE of the ACID is un-ionized
2. MORE of the CONJUGATED BASE is ionized

Question 16

EQUATION:

write the equation for pH

Answer 16

pH ⁼ – log [H⁺]

Question 17

EQUATION:

write the pOH **equation

Answer 17

pOH ⁼** – log [OH^-]**

Question 18

most drugs are considered to be _____

Answer 18

weak acids