Home > Categorize hand sanitizer- Physical properties of alcohols
Categorize hand sanitizer- Physical properties of alcohols
Please watch the two following videos about hand sanitizers (how they are made):
https://www.youtube.com/watch?v=k1EF1NBIbVo
https://www.youtube.com/watch?v=8JrevHbZyD8
Please answer the following questions about hand sanitizer as a type of matter.
1.)How would you categorize hand sanitizer, as a pure substance or a mixture?
2.)When essential oils are added to the mixture of water and alcohol, are the two miscible?
3.)How would you categorize the matter formed right after this step?
4.)The second video comments on how alcohols can dry out your skin. What does that tell you about the physical properties of alcohols?
5.)Do you think that chemical and/or physical changes occur when preparing hand sanitizer?
6.)There are two types of hand sanitizers, liquid and gel. What state of matter would you use to describe gel sanitizers?
7.)There is more than one choice. Make your selection and then defend it using both microscopic (molecular level) and macroscopic (large-scale what we see around us) arguments.
