Moles and Mass Worksheet
EF and MF Worksheet (Optional)
Mole Study Guide (Show your work!!!):
1. How many particles is contained in a mole?
2. What are the units for molar mass?
3. Know how to calculate the following: gram-mole conversions, mole-particle conversions, particle-gram conversions, percent composition, empirical and molecular formulas.
4. Complete p.346-8 #91a, 92a, 93a, 98a, 99a, 101a, 103a, 106, 112a, 113, 116, 137, p. 877 #25, 27, 29
5. Review your naming notes!!!
Here are the answers to the book questions:
91a: 2.51x10-9 mol Si
92a: 8.13x1023 molecules CS2
93a: 2.08x10-9 mol CO2
98a: 20.9 g He
99a: 24.3 g Li
101a: 1.67x10-6 g U
103a: 7.74x1022 atoms Hg
106: 2.11 x 1023 atoms Fe and C
112a: 176.12 g/mol C6H8O6
113: 114.21 g/mol (C3H5)2S
116a: 1.60 mol Na2S
116b: 4.25x10-3 mol H2S
137: Hematite has highest % of Fe (69.94%)
25: 42.10%C, 6.48% H, 51.42% O
27: Na3PO4
29: C2H2O4
Print out Fill-in Notes for Equations Start studying for your final!