University:
University of Pennsylvania
Course:
CHEM 1012 | General Chemistry I
Academic year:

2023
Views:

499

Pages:

2
Author:

rezancuk2j

Mole Worksheet (Dimensional Analysis) #2 I. What is the mass (in grams) for each of the following compounds or elements? 1. 7.24 moles of silver phosphate 2. 2.88 moles of diphosphorous pentoxide 3. 0.0009273 moles of zinc bicarbonate 4. 154.8 moles of silicon tetraiodide 5. 88.624 moles of silver II. Answer the following questions. 1. How many atoms are in 6.28 moles of aluminum? 2. How many atoms are in 90.43 moles of copper? 3. How many atoms in 7.64 moles of barium? 4. How many molecules in 3.72 moles of sulfur dioxide? 5. 78.54 g of nitrogen dioxide contain how many molecules? 6. How many moles of water are represented by 8.33 x 1018 molecules of water? 7. 76.4 g of water contain how many molecules? 8. 76.4 moles of oxygen difluoride contain how many molecules? 9. How many grams does 8.92 x 1024 atoms of tin weigh? 10. What is the mass in grams of 4.28 x 1020 molecules of bromine trifluoride? Solutions I. II. 1) 3,030 g Ag3PO4 1) 3.78 x 1024 atoms Al 2) 409 g P2O5 2) 5.44 x 1025 atoms Cu 3) 0.1738 g Zn(HCO3)2 3) 4.60 x 1024 atoms Ba 4) 82,930 g SiI4 4) 2.24 x 1024 atoms SO2 5) 9,563 g Ag 5) 1.03 x 1024 molecules NO2 6) 1.38 x 10-5 moles H2O 7) 2.56 x 1024 molecules H2O 8) 4.60 x 1025 molecules OF2 9) 1.76 x 103 g Sn 10) 0.0973 g BrF3