Unit 2- Measurements, Math, and the Mole
Unit 2- Measurements, Math, and the Mole
Unit 2- Measurements, Math, and the Mole
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Using <strong>the</strong> “mole” by weighing<br />
Ex: a scientist wants 1 mole of Na <strong>and</strong> 1 mole of Cl<br />
to make NaCl.<br />
Is he or she going to count out 6.02 x 10 23 Na <strong>and</strong> Cl<br />
atoms? NO WAY!<br />
Chemists can "count" atoms or molecules by knowing<br />
how much 1 mole of every substance weighs…<br />
The molar mass! It’s on <strong>the</strong> periodic table