Rocky Star Chemistry

acetominophen

Stoichiometry


Using the diagrams with an example based on the last table.
The "grams" arrow leads to the "÷ (Molecular Mass)" box and that arrow leads to the "mole" box.
Or, grams divided by molecular mass yields moles. (8 grams O2 ÷ 16 grams/mole = 0.5 moles).

÷   (Atomic Mass) X   (NA)
grams gram-atoms atoms
X   (Atomic Mass) ÷   (NA)
gram-atoms
X   (Atoms/Molecule) ÷   (Atoms/Molecule)
moles
÷   (Molecular Mass) X   (NA)
grams moles molecules
X   (Molecular Mass) ÷   (NA)



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