Bronze is 90% Cu and 10% Sn by mass. What is the density of bronze if the density of Cu is 8.95 g/cm3 and the density of Sn is 5.77 g/cm3?
A) 7.36
B) 6.07
C) 8.06
D) 14.72
E) 8.63

Question

Quizplus · Accepted Answer

The density of bronze can be calculated using the rule of mixtures:density of bronze = (mass fraction of Cu * density of Cu) + (mass fraction of Sn * density of Sn)= (0.9 * 8.95 g/cm3) + (0.1 * 5.77 g/cm3)= 8.63 g/cm3

Bronze Is 90% Cu and 10% Sn by Mass