A solution was created with 30.04 grams of vegetable oil and 10.04 grams of ferrous oxide. To calculate the percentage of ferrous oxide in the solution, the mass of ferrous oxide (10.04 grams) is divided by the total mass of the solution (30.04 grams of vegetable oil + 10.04 grams of ferrous oxide = 40.08 grams), which equals 25.05% or 10.04/40.08.

1. You have created a solution of vegetable oil and ferrous oxide to create ferrofluid. You have
30.04 grams of vegetable oil and 10.04 grams of ferrous oxide. By what percent of mass of the
solution is ferrous oxide?
You have created a solution of vegetable oil and ferrous oxide to create ferrofluid. You have
30.04 grams of vegetable oil and 10.04 grams of ferrous oxide. By what percent of mass of the
solution is ferrous oxide?
Solution
As it is given that a solution is formed of vegetable oil and ferrous oxide creating feerofluid.
Given mass of vegetable oil=30.4 gms
Given mass of ferrous oxide =10.04 gms
So fraction of solution comprising of ferrous oxide=mass of ferrous oxide/(total mass of
solution)
=10.04/(10.04+30.04)
=10.04/40.08=0.2505 or 25.05%