Conversions
Definitions
Mole Island
Practice -> Perfect
Past Test Review
100

This is what you are trying to find when you convert moles to moles. 

What is molar ratio?

100

This is used to measure the relationship of reactants going into a reaction and products coming out. 

What is Stoichiometry? 

100

This refers to Avogadro's number.

What is 6.02214 * 1023?

100

Fe3O4 + 4 CO--->3 Fe + 4 CO2

How many moles of CO are needed to react with 

16.5 g of Fe3O4?

0.285 mol CO

100

During alpha decay of an unstable isotope, an alpha particle is released from the nucleus of the atom. This particle is equivalent to the nucleus of this element. 

What is Helium (2 protons, 2 neutrons)? 

200

This is what you are trying to find when you convert moles to grams. 

What is molar mass? 

200

The numerical values represent how many moles of a substance you have in a chemical equation. 

What is coefficients? 

200

The molar mass in grams of an element is equal to the ________________ in [u] of one atom of said element. 

What is atomic mass? 

200

When magnesium is dropped into a test tube of hydrochloric acid, this chemical equation occurs. 

Mg + 2HCl --> MgCl2 + H2

If 17 moles of MgCl2 are produced, which is the excess reactant? 

HCl is the excess reactant 

200

The only two orbitals that will occur at the second inner most energy level of the electron cloud. 

What is s orbital and p orbital? 

300

Find the molar mass of iridium.

What is 192.217?

300

This is the measured amount of a product coming out of a chemical reaction. 

What is actual yield? 
300

In a moles --> moles stoichiometry problem, one would multiple by the known moles by this. 

What is the molar ratio? 

300

How many moles of Fe2O3 will form from 5.0 moles of Fe?

2.5 moles

300

The chemical formula for the compound Copper(II) Oxide. 

What is CuO? 

400

Find the molar ratio of carbon dioxide to glucose.

6CO2 + 6H2O -> 6O2 + C6H12O6

What is 6 mol CO2 / 1 mol C6H12O6?

400

This it the maximum amount of a product that can form from given reactants. 

What is theoretical yield? 

400

In a moles to grams stoichiometry problem, one would calculate the known moles FIRST by this. 

What is the molar ratio? 

400

How many moles of KClO3 must decompose in order to produce 9 moles of oxygen gas?

6 moles KClO3

400

This is the periodic table family that the element germanium (Ge) belongs to. 

What is metalloids? 

500

This is the molar mass of tetraphosphorus decasulfide. 

What is 444.556 g/mol P4S10?

500

This refers to the reactant(s) that are leftover after a chemical reaction. 

What is excess reactant(s)? 

500

In a grams to moles stoichiometry problem, one would calculate the known grams FIRST by this. 

What is the molar mass? 

500

How many grams of NaCl will be produced from 1.25 mol of chlorine gas reacting with sodium?

146 g NaCl

500

Boron-10 weighs approximately 10.0129 amu and has a percent abundance of 19.8%. 

Boron-11 weighs approximately 11.0093 amu and has a percent abundance of 80.2%. 

W/o using periodic tables, what is the relative atomic mass of Boron? 

What is 10.81 amu?