Question 1
1.00 oz of gold (density = 19.3 g/mL) can be hammered into a sheet that would cover a
area. How thick would such a sheet be in centimeters? (1 oz= 28.350 g)
◦ 1.58 × 10
-5 cm
◦ 4.82 × 10
-4 cm
◦ 4.02 × 10
-5 cm
◦ 6.33 × 10
4 cm
◦ 2.11 × 10
-5 cm
Question 2
A 14-karat gold ring contains 58.3% gold and weighs 12.41 g. If gold sells for $308.00/ounce, what is the value of the gold in the ring?
◦ $116
◦ $135
◦ $231
◦ $58.90
◦ $78.60