Using Percent as a Conversion Factor

1
Using Percent as a Conversion Factor
Percent is really a ratio that can be used as a
conversion factor.
2
A sample of ore was found to contain 0.35 Au by
mass. How many milligrams (mg) of Au can be
recovered from 535 kg of ore?
535 kg ore
1 x 103
m
0.35 Au
1.87 x 106
mg Au
100 ore
k
1 x 10-3
Lets create a ratio to use as a conversion
factor.
0.35 Au 100 ore