Homework: Journal pages 7-8
Today we started with a new mole lab, testing the mass of different elements, how many moles are in the molecule and how many molecules are in the mole. For each of these ways you have to use conversion factors.
For example finding how many moles in krypton.
2.7 x 10^14 x 1mol/6.02 x 10^23
=4.49 x 10^-14
Also finding how many atoms are in an mol.
Ex. Aluminum atoms
89.35 x 6.02 x 10^23/1mol
= 5.38 x 10^15
Next Scriber- Peter
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