Show:
Vocabulary
Conjugate Acids and Bases
pH and pOH
Properties
Weak or Strong
100

Water can be acidic or basic.  What is the term to describe this properties of water?

Amphoteric

100

What is the conjugate base for HCOOH in the reaction below:

HCOOH(aq) + PO43‒(aq) ⇋ HCOO‒(aq) + HPO42‒(aq)

HCOO‒

100

What is the pH for a solution with a concentration of hydrogen ions of 1 x 10-4 Molar?

4

100

What does and acid typically taste like?

Sour

100

Is HBr a weak or a strong acid?

Strong

200

What is the term for something that changes different colors for different pH values?

An indicator

200

What would be the conjugate acid for IO3-

HIO3

200

If [H+] = 1 x 10-2.9, what will be the pOH of the solution?

pH = 2.9

14 - 2.9= 11.1

pOH = 11.1

200

Which, an acid or a base, feels slippery?

Bases

200
What is MgOH (strong/weak, acid/base)

Weak Base

300

What is the definition of a weak acid or base?

An acid or base that only partially disassociates in water

300

What would be the conjugate base for the acid HCO3-

CO3-2

300

What is the concentration of hydrogen ions in solution if the pOH of the solution is 5.7?

14 - 5.7 = pH

pH = 8.3

[H+] = 10-ph

[H+] = 10-8.3

[H+] = 5 x10-9

300

Which, and acid or a base, is a good source of electrolytes?

Both and acid and a base are good sources of electrolytes

300

Which of these is a strong acid?

HClO3       HF             HI

H2S          H2SO4        H2Se

NaOH       Ca(OH)2      HNO3



HNO3

HI

H2SO4

HClO3

400

What does an Arrhenius base produce when dissolved?

Hydroxide ions (OH-)

400

What would be the conjugate base for the reaction below:

HSO4‒(aq) + HCO3‒(aq) ⇋ SO42‒(aq) + H2CO3(aq)

SO42‒

400

What is the pH of a solution if it has a hydroxide ion concentration of 2.9 x 10-8 molar?

pOH = -Log(2.9 x 10-8)

pOH = 7.54

pH = 14 - 7.54

pH = 6.46

400

Which, and acid or a base, will produce protons when dissolved?

An acid

400

What would be the pH for a solution of C6H5OH with a concentration of 0.019 M.  (Ka = 1.3 x 10-10)

Rice box: [H+] = 1.58 x 10-6

-Log(1.58 x 10-6) = pH

pH = 5.8

500

Fill in the blank:

word bank(you do not need to use all of these): Bronsted-Lowery Acid, Arrhenius Acid,  Bronsted -Lowery Base, Arrhenius Base, Donate, Accepts, hyrdogen ions, hydroxide ions. 

A ___________ is a substance that _________ protons in solution. While a ____________ is a substance that ______________ protons in solution.

Bronsted-Lowery Acid

Donates

Bronsted-Lowery Base

Accepts

500

What is the acid and conjugate base for the reaction below:

HSO3‒(aq) + H3O+(aq) ⇋ H2SO3(aq) + H2O(l)

 

Acid: H3O+

Conjugate Base: H2O

500

What is the hydroxide concentration of a solution of H2SO4 with a concentration of 1.98 x 10-9

[H+] = 2 x 1.98 x 10-9

pH = -Log(3.96 x 10-9)

pH = 8.4

pOH = 14-8.4

pOH = 5.6

[OH-] = 10-5.6

[OH-] = 2.51 x 10-6

500
When water self ionizes, it temporarily creates H3O+ and OH-.  Which of these is the acid and which of these is the base?

Acid: H3O+

Base: OH-


500

What is the concentration of hydroxide ions in a solution of 0.15 M HCrO4- (Kc = 3.0 x 10-7)

Rice box: [H+] = 2.12 x 10-4

-Log(2.12 x 10-4) = 3.67

14-3.67 = 10.33

[OH-] = 10-10.33

[OH-] = 4.68 x 10-11