Chapter 5: Stoichiometry

empirical formula

simplest ratio of elements in a polyatomic ions

molecular formula

true ratio of elements in a polyatomic ion

avogadro’s constant

6.02x10^23

conversion sequence

when going from substance A to substance B, it must be mol A to mol B

limiting reactant

the first reactant to be fully used/consumed when a reaction occurs

theoretical yield

the max amount of product able to be formed in a reaction

percent composition

how much of an element is in a polyatomic ion

empirical formula for benzene (C6H6)

CH

empirical formula of sugar glucose (C6H12O6)

CH2O

When rounding to a whole number in empirical formula calculations, the decimal must be within ____ of a whole number

.1

under STP, 1 mol gas converts to ____ liters

22.4

STP is ____ atmospheres

1

STP is ____ degrees Celsius

0

Molarity units

M

Molarity is the number of ____ dissolved in 1 liter of solution

moles

there are ____ atoms in one mole

6.02x10^23

symbol for moles in equations

n

metric prefixes

added to base units to increase value

stoichiometry

quantitive relations between different values and units

dimensional analysis

method of stoichiometry