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- 1. Multiple Choice
How many water molecules are in 5.2 moles of water?
6.0 x 1023 molecules
5.2 molecules
3.1 x 1024 molecules
8.6 x 10-24 molecules
- 2. Multiple ChoiceWhat is the mass of 0.89 mol of CaCl2?111 grams0.008 grams98.9 gramsnone of the choices
- 3. Multiple Choice
If you were converting from moles Z to grams Z, which conversion factor would you use?
- 4. Multiple Choice
If you were converting from grams Z to moles Z, which conversion factor would you use?
- 5. Multiple Choice
How many molecules of diphosphorus pentachloride are in exactly 1 mole of P2Cl5?
2 atoms
5 atoms
2 moles
5 moles
6.022 x 1023 molecules
- 6. Multiple Choice
How many atoms of phosphorus are in exactly 1 molecule of P2Cl5
2 atoms
5 atoms
2 moles
5 moles
6.022 x 1023 molecules
- 7. Multiple Choice
Which type of particles are used for covalent (molecular) compounds?
atoms
molecules
formula units
- 8. Multiple Choice
Which type of particles are used for ionic compounds?
atoms
molecules
formula units
- 9. Multiple Choice
Which type of particles are used for elements?
atoms
molecules
formula units
- 10. Fill in the Blank
How many calcium ions are in 11 formula units of calcium phosphate, Ca3(PO4)2?
Number only. No Units.
- 11. Fill in the Blank
How many phosphorus atoms are in 11 formula units of calcium phosphate, Ca3(PO4)2?
Number only. No Units.
- 12. Multiple Choice
What is Avogadro's number?
- 13. Multiple Choice
What id the molar mass of UF6?
101 g/mol
238 g/mol
257 g/mol
352 g/mol
- 14. Multiple Choice
If you want 1.55 moles of nitrogen trichloride, how many grams should you measure out?
0.0129 g
120. g
187 g
9.33 g
- 15. Poll
How do you feel about moles and calculating molar mass?
Great!
I understand, but might need more practice
I understand moles, but not molar mass
I understand molar mass, but not moles
I do not understand.
- 16. Multiple Choice
How many formula units are in 315g of zinc perchlorate?
1.19
1.1919
7.18x1023
7.18x1025
- Answer choicesTagsAnswer choicesTags