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