Chemistry Exam 4 Review

Convert mole of Atom to # of atoms

Convert mole of molecules to # of molecule convert that to one of the atom in the formula

Atoms or molecule to moles

Calculate molar ass of compound

take each atoms and multiply by their subscript and add all to get g/mol

Calculate grams to mols using molar mass 

calculate mols to grams using molar mass 

Convert from gras to atoms

convert from atoms to grams

Convert Mol A to Mol B

mol compound A to grams of compound B

gram compound A to mol compound b

grams compound A to grams B

Limiting Reactant 

the one that run out 1st; divide mol by their respective coefficient; the smallest

Theoretical Yield in mols

Compare the 2 amount of mol of compound C; it’s the smallest and also limiting reactant 

Percent yield 

(Actual yield / theoretical yield) x 100

Percent error 

100 - percent yield 

Excess reactant left over

What is the actual yield is associated 

product

Theoretical Yield in grams

Combustion Reaction

any mixture of C with addition to O produce CO2 and H2O

Synthesis or combination

An element reacting with another to make a compound

Decomposition Reaction

breaking down complex formula

Single Replacement

pure element react with compound and pair with and of the element in the compound

Double Replacement

a compound react with another comp

Precipitation

when 2 aqueous solution mixed from double replacement and get a solid

Acid Base Neutralization

In double replacement when two aqueous solution one acid ad one base and it result with salt + water