Chemistry Midterm Review

Nomenclature

100

Potassium Hydroxide

KOH

200

C₇H₁₂

Heptyne

300

H₂SO₃

Sulfurous Acid

400

Pentanitrogen Hexoxide

N₅O₆

500

Cu₃(PO₄)₂

Copper (II) Phosphate

Equations

100

Find the density of a substance with mass of 28.3g and a volume of 8.4cm³. 

3.4g/cm³

200

What is the frequency of a beam of light with a wavelength of 575nm. 

5.22x10¹⁴ Hz

300

How many moles are in 7.98x10²³ molecules of KCl?

1.33 moles KCl

400

How many grams are in 7.4 moles of Carbon?

88g of Carbon

500

How many molecules are in 63.0g of lithium nitrite?

7.16 molecules

Polyatomic Ions

100

NH₄⁺

ammonium

200

cyanide

CN^-

300

phosphate

PO₄^3-

400

HCO₃^-

bicarbonate

500

dichromate

Cr₂O₇