- 1. What is the mass of 1 mole of Copper atoms?
A) 2 grams B) 29 grams C) 63.546 grams D) 58.933 grams
- 2. What is the mass of 1 mole of Ba atoms?
A) 137.33 grams B) 2 grams C) 56 grams D) 108.11 grams
- 3. What is the mass of 6.02 x 1023 atoms of Zinc?
A) 65.39 grams B) 10 grams C) 30 grams D) not enough information
- 4. What percent by mass, of oxygen is present in a mole of H2O?
A) 95% B) 11% C) 88.89% D) 16%
- 5. How many atoms of oxygen are in 1 molecule of Cu(SO4)2 ?
A) 6 B) 4 C) 2 D) 8
- 6. How many atoms of K(OH)3
A) 3 B) 1 C) not enough information D) 4
- 7. Find the molar mass of the compound C2H8?
A) 24 g/mol B) 8 g/mol C) 18 g/mol D) 32 g/mol
- 8. What is the correct formula for the compound Nickel (II) Chloride?
A) NiCl B) NiCl2 C) Ni2Cl D) dinickel chloride
- 9. Find the mass of 2 moles of Calcium atoms.
A) not enough information B) 80 grams C) 40 grams D) 20 grams
- 10. Find the percent of Cl atoms by mass, in 1 mole of NaCl.
A) 50% B) 58.45 % C) 35.45% D) 60.65%
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