Chem 1 Exam 1 2.4
defin mole
one mole of any element is equal to the mass number of the element in grams
molecular mass defin
the mass of atoms that make up a molecule.
defin Molar mass
atomic mass of an element expressed in grams is the mass of a mole of the element.
molecular formula
gives actual number of atoms of each element in a molecule of the compound.
structural formula
uses lines to represent chemical bonds and show the atoms in a molecule are connected to each other.
condensed structural formula
a single-line chemical notation that shows the order of atoms in a molecule, omitting or limiting bond lines but conveying connectivity info and functional groups
whats an Isomer
compounds with the same chemical formula but different structures