HELP:
Formula
M
, Molar
Mass (g mol
-1
)
m, Mass of
sample (g)
n, Moles of
sample (mol)
N, Number of atoms,
molecules or formula units
CaBr
2
200.
23.8
0.119
Help
To determine the number of formula units of CaBr
2
use the moles of the sample and Avogadro's number.
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