"Chemical Conversions" Flashcards
Mass/moles
The most practical and common type of conversion done by chemists
1g/mole
1 u of any pure substance is equal to this
G/mol
Molar mass is typically expressed in this u it
Empirical formula
Tells what elements are present and gives the simplest form
Carbon tetra chloride molar mass
153.81
The molar mass in each compound
If you know this this you can determine percent composition
Structural formula
Type of formula best represents the arrangement of bond in a molecule
12g of carbon
The official definition of Avogadro’ss number
Mole ratios or coefficient bridges
What are used as conversion factors to go from moles of one substance to moles of another substance
Molar mass
Relative mass of a pure substance
Law of Definite composition
Why a laboratory analysis of a sample of water will always show 88% oxygen
Stoichiometry
What you are using when performing mathematical calculations to determine chemical relationships
Excess reactants
When a limiting reactant is all used up, these are left over
Theoretical yield
The maximum amount of product that could be created from a given amount of reactant
Percent yield
The actual yield divided by the theoretical yield and multiplied by 100%
