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- 1. Multiple Choice
3. _____ is the volume occupied by one mole of any gas at STP.
Avogadro's number
molar mass
molar volume
molar particles
- 2. Multiple Choice
6. Which of the following can't be an empirical formula?
H2O2
H2O
K2PtCl4
C3H6O
- 3. Multiple Choice
8. _____ is an atom, an ion, or a molecule, depending upon the way a substance commonly exists.
Avogadro's number
representative particle
formula unit
molar particles
- 4. Multiple Choice
12. _____ is the mass of any element or compound.
Avogadro's number
molar mass
molar volume
molar particles
- 5. Multiple Choice
14. _____ is the percent by mass of each element in a compound.
empirical formula
molar mass
molar volume
percent composition
- 6. Multiple Choice
19. Which of the following is the meaning of STP?
standard trusted particles
standard trusted person
standard temperature and particles
standard temperature and pressure
- 7. Multiple Choice
19. Which of the following conditions are STP?
0oC and 1 atm
25oC and 1 atm
0oC and 0.75 atam
25oC and 0.75 atm
- 8. Multiple Choice
23. _____ is the number of grams or amus for any element and is an average of all of the isotopes of that element that exist in nature.
molar volume
molar mass
atomic mass
molar particles
- 9. Multiple Choice
24. How many representative particles are equal to one mole?
6.02 x 1024
22.4
6.02 x 1023
24.4
- 10. Multiple Choice
25. _____ is the SI unit to measure the amount of a substance.
mole
molar mass
molar volume
Avogadro's number
- 11. Multiple Choice
29. _____ is the number of representative particles of a substance present in 1 mole of that substance.
mole
molar mass
molar volume
Avogadro's number
- 12. Multiple Choice
32. _____ is the smallest whole number ratio of the atoms in a compound.
empirical formula
molar mass
molar volume
molecular formula
- 13. Multiple Choice
_____ is the value for molar volume.
6.02 x 1024
22.4
6.02 x 1023
24.4
- 14. Multiple Choice
Which of the following provides a list of diatomic molecules?
H, N, O, F, P, S, Cl
He, N, O, Cl, F, Br, I
H, N, O, S, Se, F, I
H, N, O, F, Cl, Br, I
- 15. Multiple Choice
_____ is used for covalent compounds.
molecules
atoms
formula unit
- 16. Multiple Choice
_____ is used for ionic compounds.
molecules
atoms
formula unit
- 17. Multiple Choice
_____ is used for elements.
molecules
atoms
formula unit
- 18. Multiple Choice
_____ is the element and the specific number of atoms in the compound.
empirical formula
molar mass
molar volume
molecular formula
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