Enter Title

Nomenclature

100

Name the cation: 

Co⁺³

cobalt (III) ion 

200

Name the compound Fe₂O₃

iron (III) oxide

300

Combine the ions to get the formula of the compound they form. 

Sn⁺⁴       SO₄^2-

Sn(SO₄)₂

400

Give the chemical formula of Copper (II) acetate 

Cu(C₂H₃O₂)₂

500

Give the name of the compound. 

FeCl₃•6H₂O

iron (III) chloride hexahydrate 

Polyatomic Ions

100

Name the polyatomic ion. PO₄^3-

Phosphate

200

Give the chemical formula of nitrate. Include the charge. 

NO₃^-

300

Name the polyatomic ion. 

CrO₄^2-

chromate

400

If the chemical formula for chlorite is ClO₂^- what is the chemical formula of hypochlorite? 

Include the charge. 

ClO₁^-

500

Give the formula for the polyatomic ion perchlorate. 

Include the charge. 

ClO₄^-1

Mole Calculations 1

100

Calculate the number of moles in 0.039 g palladium. 

Pd=106.42 g/mol

3.7 x 10^-4 mol Pd 

200

Calculate the mass in grams of 1.002 mol of Chromium

Cr=51.996 g/mol

52.10g Cr

300

Calculate the number of atoms in 0.0082g of gold. 

Au=196.97 g/mol 

2.5 x 10¹⁹ atoms Au

400

Calculate the number of moles in 45.0 g of acetic acid (CH₃COOH). 

.749 mol CH₃COOH

500

Calculate the number of molecules in 4.27 mol of tungsten(VI) oxide, WO₃. 

2.57 x 10²⁴ molecules WO₃

Mole Calculations 2

100

Calculate the number of moles in 8200g of Iron. 

Fe=55.845 g/mol

150 mol Fe

200

Calculate the number of moles of 1.06 x 10²³ atoms of tungsten. 

1.76 x 10^-1 mol W

300

Calculate the mass of 8.22 x 10²³ atoms of rubidium.

Rb=85.468 g/mol

1.17 x 10² g Rb

400

Calculate the mass of 3.00 mol of selenium oxybromide (SeOBr₂). 

Se=78.971 g/mol

O=15.999 g/mol

Br=79.904 g/mol

764g SeOBr₂

500

Calculate the number of molecules in 285g of iron(III) phosphate (FePO₄)

1.14 x 10²⁴ molecules FePO₄

Random

100

What is the molar mass of acetamide (C₂H₅NO)? 

Answer with 5 sig figs and proper units. 

59.068 g/mol 

200

Precious metals are commonly measured in troy ounces. A troy ounce is equivalent to 31.1g. How many moles are in a troy ounce of gold? 

Au=196.97 g/mol

0.158 mol Au

300

Calculate the mass percent of carbon in acetamide (C₂H₅NO). 

5 sig figs. 

40.668%

400

Calculate the number of moles in 250mL of water. 

Density= 0.997 g/mL (at 25° C)

14 mol H₂O

500

Calculate the mass of Al that would have the same number of atoms as 6.35g Cd. 

Al=26.982 g/mol

Cd=112.41 g/mol

1.52g Al