Acid/Base Properties and Models
So Much Potential in You
Stop Being Salty
Misc.
1
What type of substance can donate two protons?
Diprotic acid
1
What is a substance that ionizes to conduct electricity in a solution?
Electrolyte
1
What describes the extent of the forward equilibrium reaction in the formation of hydronium ions?
Acid-ionization constant
1
What is the pOH of a substance whose hydronium ion concentration is 3.4 * 10-13?
1.53
2
Is a solution with a high Kb a strong acid or base?
Strong base
2
What is pH + pOH?
14
2
What two things are produced in neutralization reactions?
Salt
Water
2
Classify Li(OH) as a base or acid. Classify it as Arrhenius, Bronstead-Lowry, and/or Lewis
Arrhenius, Bronstead-Lowry, and Lewis base
3
Classify H2O as a base or acid. Classify it as Arrhenius, Bronstead-Lowry, and/or Lewis
Bronstead-Lowry and Lewis
3
What are pH indicators?
Substances whose colors are sensitive to pH
3
What is the equivalence point of a substance?
The point in titration at which thee number of hydronium ions equals the number of hydroxide ions.
3
What type of substance gives up protons easily and ionize completely?
Strong acids
4
State whether the following substance is a strong/weak acid or base.
Weak base
4
28 mL of .003 M Magnesium hydroxide can neutralize 350 mL of hydrofluoric acid. What is the concentration of HF?
.61 M
4
Write a neutralization reaction between magnesium hydroxide and hydroflouric acid. Identify the salt produced.
Mg(OH)2 + 2HF ⇆ MgF2 + 2H2O
Magnesium fluoride is produced
4
Is the following substance a strong/weak acid or base?
Strong acid
5
What is the difference between Arrhenius bases, Bronstead-Lowry bases, and Lewis bases?
Arrhenius bases - substance that dissociate to release hydroxide in aqueous solutions
Bronstead-Lowry bases - substances that accepts a proton
Lewis bases - substances that can donate a pair of electrons
5
A solution has a hydronium ion concentration of 8.74 * 10-5 M. Give the following numbers for:
pH
pOH
[OH-]
Is it basic or acidic?
pH = 4.06
pOH = 9.94
[OH-] = 1.14 * 10-10 M
acidic
5
Write a neutralization reaction that involves lithium chloride as a product. Indicate the acid and base involved.
Li(OH) (aq) + HCl (aq) ⇆ LiCl (s) + H2O (l)
Lithium hydroxide is the base
Hydrochloric acid is the acid
5
List three properties of acids and three properties of bases?
Acids: Reactive, turns litmus paper red, and makes food taste sour
Bases: makes food taste bitter, turns litmus paper blue, feels slippery