Stoichiometry

What is stoichiometry

applying math to formulas and equations

limiting reactant

the reactant that runs out first

excess

what is left over

coefficients

used to indicate the number of molecules or moles

percent yield

(actual yield/theoretical yield) x 100

actual yield

what you actually make

theoretical yield

what you couldve made

mole

6.02×10²3

reactants

before the arrow

products

after the arrow

moles to moles

1 step

mass to mass

3 steps

molecules to molecules

3 steps

42.8 moles O2 × 6 mol H2O/7 mol O2

36.7 mol H2O

what is a balanced chemical equation

A balanced chemical equation is an equation that shows the reactants and products of a chemical reaction with equal numbers of atoms of each element on both sides.

molar mass

is the mass of one mole of a substance, typically expressed in grams per mole (g/mol), that relates the mass of the substance to the amount of substance in moles.

what is the molar mass of O2

The molar mass of O2 is 32.00

what is the molar mass of H2O

The molar mass of H2O is 18.02

how many moles in 10g of H2O

To find the number of moles, divide the mass (10g) by the molar mass of H2O (18.02 g/mol), resulting in approximately 0.55 moles.

what is the molar mass of Al2

The molar mass of Al2 is 54.94 g/mol.