Mole Test Review

Important Vocab

100

The scientist for whom the mole is named after

Who is Avogadro

200

Unit for mass

What is grams

300

The number of "things" in a mole

What is 6.02 x 10²³

400

This is what we use to convert between mass to mole.

What is molar mass

500

What is the percent composition of Mg in Mg(MnO₄)₂

What is 9.2706%

Wild Card

100

The Molar Mass of FeO

What is 71.844 g/mol

200

The Molar Mass of MgSO₄

What is 120.367 g/mol

300

What is the empirical formula of a compound that is 27.3% C and 72.7%O

CO₂

400

Determine the molecular formula of a compound with an empirical formula of NH₂ and a formula mass of 32.06 g/mol.

N₂H₄

500

The molar mass of a compound is 92g/mol.  Analysis of a sample of the compound indicates that it contains 0.606g N and 1.390g O.  Find its molecular formula.

N₂O₄

Mass-Mole Conversion

100

How many moles are equal to 145 g of zinc nitrate, Zn(NO3)2?

0.766 mol Zn(NO₃)₂

200

Number of grams in 88.1 moles of magnesium

What is 2140 grams

300

Number of grams in 4.5 moles of NaF

What is 190 grams

400

Number of moles in 68 grams of Cu(OH)₂

What is 0.70 moles

500

Number of moles in 1.2 x 10³ of NH₃

What is 70. moles

Volume/Particle-Mole Conversion

100

How many moles are equal to 4.15 x 1023 molecules of carbon monoxide?

0.689 mol CO

200

Number of liters of any gas in one mole

What is 22.4 L

300

Number of molecules in 23 moles of oxygen gas

What is 1.4 x 10²⁵ molecules

400

Number of liters in 0.96 moles of sulfur trioxide

What is 22 L Sulfur Trioxide

500

Number of moles in 89.6 L of neon

What is 4.00 mol Ne

Two-step Conversions

100

What is the volume of 8.7 x 10²³ molecules of chlorine gas (Cl₂)

What is 32 L

200

The mass of 18.0 L of CH₄

What is 12.9 grams

300

Number of molecules in 1.62 grams of calcium chloride

What is 8.79 x 10²¹ molecules

400

Number of grams of 4.3x10²¹ molecules of UF₆

What is 2.5 grams

500

Mass of one atom of nickel

What is 9.75 x 10^-21 grams