Question 1
If 8.32 g of copper is mixed with 5.2372 × 10
-2 mol of zinc to create the alloy brass, how many metal atoms total are present in the brass?
◦ 1.10 × 10
23 metal atoms
◦ 7.88 × 10
22 metal atoms
◦ 3.04 × 10
-25 metal atoms
◦ 3.15 × 10
22 metal atoms
◦ 3.15 × 10
-22 metal atoms
Question 2
If 102.7 g of tin is mixed with 10.9 g of copper to create the alloy pewter, how many moles of metal are present in the pewter?
◦ 0.6233 mol total
◦ 1.037 mol total
◦ 1.604 mol total
◦ 0.8675 mol total
◦ 0.9643 mol total