Apps ≫ The Disappearance of Acetone

1 ) Place filter paper in a Petri dish.
2 ) Put the Petri dish on an electronic balance and set it to zero.
3 ) Drop 0.1 g of acetone onto the filter paper and observe the changes.
4 ) Open the window to ventilate the room.
5 ) Freely experiment under room temperature, sealed conditions, and windy conditions.