CHE1210 Exam #1: Polyatmics, Diatomics, Strong Acids + Bases

Perchloric acid

HClO₄

What is a strong acid/base?

A strong acid/base fully dissolves in water.

Hydrochloric acid

HCl

Hydrobromic acid

HBr

Hydroiodic acid

HI

Nitric acid

HNO₃

Sulfuric acid

H₂SO₄

Chloric acid

HClO₃

What makes a compound a strong base?

If a group 1 or group 2 metal is linked up with an OH- (hydroxide) ion.

Which one of the following is a strong base?

A. PbOH

B. AgOH

C. Mg(OH)₂

D. Fe(OH)₃

C. Mg(OH)₂

How can you tell what's a strong acid/base and what isn't?

Either if:

A. It's not one of the 7 strong acids

B. It's a hydroxide NOT paired with a Grp1/Grp2 metal

C. Equation has an equilibrium arrow in it (⇌)

Acetate

C₂H₃O₂⁻

Carbonate

CO₃²⁻

Hydrogen carbonate (bicarbonate)

HCO₃⁻

Oxalate

C₂O₄²⁻

Ammonium

NH₄⁺

Nitrate

NO₃⁻

Nitrite

NO₂⁻

Cyanide

CN⁻

Thiocyanate

SCN⁻

Hypochlorite

ClO⁻

Chlorite

ClO₂⁻

Chlorate

ClO₃⁻

Perchlorate

ClO₄⁻

Sulfate

SO₄²⁻

Hydrogen sulfate (bisulfate)

HSO₄⁻

Sulfite

SO₃²⁻

Hydrogen sulfite (bisulfite)

HSO₃⁻

Thiosulfate

S₂O₃²⁻

Phosphate

PO₄³⁻

Hydrogen phosphate

HPO₄²⁻

Dihydrogen phosphate

H₂PO₄⁻

Permanganate

MnO₄⁻

Chromate

CrO₄²⁻

Dichromate

Cr₂O₇²⁻

Peroxide

O₂²⁻

H₂

Hydrogen

N₂

Nitrogen

O₂

Oxygen

F₂

Fluorine

Cl₂

Chlorine

Br₂

Bromine

I₂

Iodine

Hg

Mercury

Methane

CH₄

Ethane

C₂H₆

Propane

C₃H₈

Butane

C₄H₁₀

Pentane

C₅H₁₂

Hexane

C₆H₁₄

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