Question 1
Bronze is 90% Cu and 10% Sn by mass. What is the density of bronze if the density of Cu
is 8.95 g/cm
3 and the density of Sn is 5.77 g/cm
3?
◦ 7.36
◦ 6.07
◦ 8.06
◦ 14.72
◦ 8.63
Question 2
Calculate the number of grams of aluminum produced in the electrolytic process when 2.5 × 10
5 coulombs are provided to the reaction. Assume 100% efficiency.
◦ 23 g
◦ 7.7 g
◦ 70 g
◦ 3.5 g
◦ 11 g