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- 1. Multiple ChoiceA mole of potassium chloride contains 6.02 x 1023 _____.atomsrepresentative particlesionsmolecules
- 2. Multiple ChoiceMolar mass is in units of ________.gramsgrams/molemolemoles/gram
- 3. Multiple ChoiceWhat is the molar mass of carbon?6 grams12 grams/mole18 moles6 moles/gram
- 4. Multiple ChoiceWhat is the molar mass of water?3 grams/mole18 grams/mole18 moles6 moles/gram
- 5. Multiple ChoiceWhich conversion factor would you use to calculate correctly the mass of 2 moles of the element titanium?1 g Ti / 47.84 mol Ti1 mol Ti / 47.84 g Ti47.84 mol / 1 g Ti47.87 g Ti / 1 mol Ti
- 6. Multiple ChoiceWhich compound has the smallest molar mass?COCO2H2OH2O2
- 7. Multiple ChoiceWhich represents the greatest mass of sulfur?1 gram of sulfur1 molecule of sulfur0.5 mole of sulfur6.02 x 1023 atoms of sulfur
- 8. Multiple ChoiceWhich has the greatest number of molecules?1 mole of methane CH428 grams of carbon monoxide CO16 grams of methane CH4none of the above
- 9. Multiple ChoiceHow many grams are in 1.2 x 1024 molecules of CO?28 grams56 grams6.02 grams1.2 grams
- 10. Multiple ChoiceWhich has a greater mass: 1 mole of scandium or 2 moles of boron?scandiumboronneithermore information is needed.
- 11. Multiple ChoiceWhat is the mass of 2.50 mol of oxygen gas O2?40 g80 g16 g32 g
- 12. Multiple ChoiceWhat is the mass in grams of 6.25 mol of copper (II) nitrate?126 g785 g625 g1172 g
- 13. Multiple ChoiceAvogadro's number of representative particles is equal to one_____.kilogramgramkelvinmole
- 14. Multiple ChoiceWhat do we call the SI unit for amount of a substance?Avogadros numberkilogrammoleliter
- 15. Multiple ChoiceWhat is the molar mass of AuCl3?96 g130 g232.5 g303.3 g
- 16. Multiple ChoiceWhat is the molar mass of (NH4)2CO3 ?144 g138 g96 g78 g
- 17. Multiple ChoiceWhat is the mass in grams of 5.90 mol C8H18?.0512 g19.4 g673 g389 g
- 18. Multiple ChoiceHow many atoms of carbon are in five molecules of propane, C3H8?403158
- 19. Multiple ChoiceHow many molecules of sugar (C6H12O6) are in a mole?24 molecules180 molecules180 g6.02 x 1023 molecules
- 20. Multiple ChoiceHow many water molecules are in 5.2 moles of water?6.02 x 10235.23.1304 x 10248.638 x 10-24
- 21. Multiple ChoiceHow many hydrogen atoms are in 8.46 moles of methane, CH4?33.84 atoms2.04 x 1025 atoms2.04 x 1025 molecules34 atoms
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