Question 1
If 102.7 g of tin is mixed with 10.9 g of copper to create the alloy pewter, how many metal atoms total are present in the pewter?
◦ 3.75 × 10
23 metal atoms
◦ 5.81 × 10
23 metal atoms
◦ 6.24 × 10
23 metal atoms
◦ 5.22 × 10
23 metal atoms
◦ 9.66 × 10
23 metal atoms
Question 2
How many dozen are in one mole?
◦ 2.0 × 10
23 dozen
◦ 6.0 × 10
23 dozen
◦ 2.0 × 10
-23 dozen
◦ 12 dozen
◦ 5.0 × 10
22 dozen