Chemistry Calculation

Question

The cost per square inch in dollars/in^2 of aluminum foil is 0.000144.

The grams per square inch (g/in^2) of the aluminum foil is 0.0043.

How do I determine the cost per gram ($) of the aluminum foil in dollars per gram?

Answer 1

You can think of this as a dimensional analysis problem. The information given can be expressed as equivalences and conversion factors.

Given: $0.000144 = 1 in²

0.0043 g = 1 in²

Asked: ?$ = 1 g

^$0.000144 / _{1 in^2} x ^{1 in^2}/ _{0.0043 g} = ^$0.000144/ _{0.0043 g} = ^$0.033/ _g