Strong Acids and Conjugate Bases

Hydroiodic Acid (HI)

Strong Acid

The conjugate base for Hydroiodic Acid (HI)

Iodide Ion I-

Hydrobromic Acid (HBr)

Strong Acid

The conjugate base for hydrobromic acid (HBr)

Bromide Ion (Br-)

Hydrochloric Acid (HCl)

Strong Acid

The conjugate base for hydrochloric acid (HCl)

Chloride Ion (Cl-)

Sulfuric Acid (H2SO4)

Strong Acid

The conjugate base for sulfuric acid (H2SO4)

Hydrogen Sulfate Ion (HSO4)

Nitric Acid (HNO3)

Strong Acid

The conjugate base for nitric acid (HNO3)

Nitrate Ion (NO3-)

Hydronium Ion (H3O+)

Strong Acid

The conjugate base for hydronium ion (H3O+)

Water (H2O)

Phosphoric Acid (H3PO4)

Weak Acid

The conjugate base for phosphoric acid (H3PO4)

Dihydrogen Phosphate Ion (H2PO4-)

Hydrofluoric Acid (HF)

Weak Acid

The conjugate base for hydrofluoric acid (HF)

Fluoride (F-)

Acetic Acid (CH3COOH)

Weak Acid

The conjugate base for acetic acid (CH3COOH)

Acetate Ion (CH3COOH-)

Carbonic Acid (H2CO3)

Weak Acid

the conjugate base for carbonic acid (H2CO3)

Bicarbonate Ion (HCO3-)

Ammonium Ion (NH4+)

Weak Acid

the conjugate base for ammonium ion (NH4+)

Ammonia (NH3)

Hydrocyanic Acid (HCN)

Weak Acid

the conjugate base for hydrocyanic acid (HCN)

Cyanide Ion (CN-)

Water (H2O)

Weak Acid

the conjugate base for water (H2O)

Hydroxide Ion (OH-)

When an acid is strong, their conjugate base will be weaker

True

When an acid is weak, their conjugate base will be stronger

True

When an acid is strong, their conjugate base will also be strong

False

When an acid is weak, their conjugate base will also be weak

False

The calculation of equilibrium constant (Ka)

Take the concentration of the products and divide them by the concentration of the reactants

Only aqueous and gaseous properties are included in the equilibrium constant

True

Liquid properties (l) are included in the equilibrium constant

False

You are not meant to add water or anything with (l) in the equilibrium constant

True

When the acid is strong, the value of the equilibrium constant (Ka) will be strong

True

The structure for Hydrogen Sulfate Ion

HSO4-

The equilibrium constant for Hydrogen Sulfate Ion

1.2×10^-2

The structure for phosphoric acid

H3PO4

The equilibrium constant (Ka) for Phosphoric Acid

7.5×10^-3

The structure for hydrofluoric acid

HF

The equilibrium constant (Ka) for hydrofluoric acid

7.2×10^-3

The structure for Acetic Acid

CH3COOH

The equilibrium constant (Ka) for acetic acid

1.8×10^-5

The structure for carbonic acid

H2CO3

The equilibrium constant (Ka) for carbonic acid

4.3×10^-7

The structure for Dihydrogen Phosphate Ion

H2PO4-

The equilibrium constant (Ka) for dihydrogen phosphate ion

6.2×10^-8

The structure for Ammonium Ion

NH4+

The equilibrium constant (Ka) for ammonium

5.6×10^-10

the structure for hydrocyanic acid

HCN

The equilibrium constant (Ka) for hydrocyanic acid

4.9×10^-10

The structure for bicarbonate ion

HCO3-

The equilibrium constant (Ka) for bicarbonate ion

5.6X10^-11

The structure for hydrogen phosphate ion

HPO4²-

The equilibrium constant (Ka) for hydrogen phosphate ion

2.2×10^-13