How many moles and how many atoms of zinc are in a sample weighing 34.9 g?
A. 0.533 mol, 8.85 × 10-25 atoms
B. 0.533 mol, 3.21 × 1023 atoms
C. 1.87 mol, 3.10 × 10-24 atoms
D. 1.87 mol, 1.13 × 1024 atoms
Answer:B
How many moles and how many atoms of zinc are in a sample weighing 34.9 g?
A. 0.533 mol, 8.85 × 10-25 atoms B. 0.533 mol, 3.21 × 1023 atoms C. 1.87 mol, 3.10 × 10-24 atoms D. 1.87 mol, 1.13 × 1024 atoms