Solder is used in the electronics industry because it has a low melting point and can make durable electrical connections between copper wires. Electronic solder is an alloy of tin and lead. Recently someone brought to the Great Basin Chemical Lab a sample of solder and asked for an analysis. Using the same techniques from Lab #1 in which we determined the volumetric composition of a solder alloy, determine the composition of this solder alloy. Answer in % lead (by mass). Not by volume.
Here is the data:
Density of pure lead: 11.4 g/cm^3
Density of pure tin: 7.31 g/cm^3
Density of solder sample: 10.35 g/cm^3
Remember find the % lead by MASS.