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18 Cards in this Set
 Front
 Back
Avogadro's number

the number of units in a mole; 6.022 x 10^23


Balanced

said of an equation in which the numbers and kinds of atoms on both sides of the arrow are the same


Coefficient

a number placed before a formula in an equation to indicate how many formula units are required to balance the equation


Empirical formula

a formula that gives the ratios of atoms in a compound


Formula mass

the sum of atomic masses of all atoms in one formula unit of a substance


Formula unit

one unit (atom, ion, or molecule) corresponding to a given formula


Limiting reactant

the reactant present in limiting amount that controls the extent to which reaction occurs


Molar mass

the mass of 1 mol of substance; equal to the molecular or formula mass of the substance in grams


Molarity (M)

a common unit of conentration; the number of moles of solute per liter of solution


Mole (mol)

the SI unit for amount of substance; the quantity of a substance that contains as many molecules or formula units as there are atoms in exactly 12g of carbon12


Molecular formula

a formula that tells the identity and numbers of atoms in a molecule


Molecular mass

the sum of atomic masses of the atoms in a molecule


Percent composition

a list of elements present in a compound and the mass percent of each


Percent yield

the amount of product actually formed in a reaction divided by the amount theoretically possible and multiplied by 100%


Solute

the dissolved sunstance in a solution


Stoichiometry

mole/mass relationships between reactants and products


Titration

a procedure for determining the concentration of a solution


Yield

the amount of product formed in a reaction
