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- 1. Multiple ChoiceA mole of Neon contains
6.02 x 1023 _____.atomsformula unitsionsmolecules - 2. Multiple ChoiceMolar mass is in units of ________.gramsgrams/molemolemoles/gram
- 3. Multiple ChoiceWhich conversion factor would you use to calculate correctly the mass of 2 moles of any element?multiply by molar massdivide by molar massmultiply by Avogadro's numberdivide by Avogadro's number
- 4. Multiple ChoiceWhich compound has the smallest molar mass?COCO2H2OH2O2
- 5. 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
- 6. Multiple ChoiceHow many moles are in 1.204 x 1024 molecules of CO?2 moles5 grams6.02 moles1.2 moles
- 7. Multiple ChoiceWhich has a greater mass:
1 mole of scandium or 2 moles of boron?scandiumboronneithermore information is needed. - 8. Multiple ChoiceWhat is the mass of 2.50 mol of oxygen gas O2?40 g80 g16 g32 g
- 9. Multiple ChoiceWhat is the mass in grams of 6.25 mol of Cu (NO3)2?126 g785 g625 g1172 g
- 10. Multiple ChoiceAvogadro's number of representative particles is equal to one_____.kilogramgramkelvinmole
- 11. Multiple ChoiceWhat do we call the SI unit for amount of a substance?Avogadro's numberkilogrammoleliter
- 12. Multiple ChoiceWhat is the molar mass of AuCl3?96 g130 g232.5 g303.3 g
- 13. Multiple ChoiceWhat is the molar mass of (NH4)2CO3 ?144 g138 g96 g78 g
- 14. Multiple ChoiceWhat is the mass in grams of 5.90 mol C8H18?.0512 g19.4 g673 g389 g
- 15. Multiple ChoiceHow many atoms of carbon are in five molecules of propane, (5C3H8)?403158
- 16. Multiple ChoiceHow many molecules of sugar (C6H12O6) are in a mole?24 molecules180 molecules180 g6.02 x 1023 molecules
- 17. Multiple ChoiceHow many water molecules are in 5.2 moles of water?6.02 x 10235.23.1304 x 10248.638 x 10-24
- 18. Multiple ChoiceHow many hydrogen atoms are in 8.46 moles ?5.092 x 1024 atoms2.04 x 1025 atoms2.04 x 1025 molecules34 atoms
- 19. Multiple ChoiceWhat is the molar mass of HCl?36 grams/mole18 grams/ mole2 grams/mole
- 20. Multiple ChoiceWhat is the molar mass of water?18 grams/mole3 grams/mole2 grams/mole
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