This preview shows page 1. Sign up to view the full content.
Unformatted text preview: As a result, for all other elements
the numeric value of the mass in grams of one mole of atoms and the weightedaverage atomic mass in atomic mass units are equal. For example, the weighted
average atomic mass of lithium is 6.941 u and the mass of one mole of lithium
atoms is 6.941 g. Thus, we can easily establish the mass of one mole of atoms,
called the molar mass, M, from a table of atomic masses.* For example, the
molar mass of lithium is 6.941 g Li> mol Li. Figure 2-16 attempts to portray the
distribution of isotopes of an element, and Figure 2-17 pictures one mole each of
four common elements. We established the atomic
mass of 16O relative to that
of 12C on page 47. ▲ 1 mol of C = 6.02214 * 1023 C atoms = 1...
View Full Document