what does applied chemistry have to do with making ice cream?
Ice CREAM
Define Problem: Nosotros had to be chemical engineers and create ice cream using different ingredients and the instructions given.
Earlier You Make Water ice-Cream Questions
i. What does applied chemistry have to practice with making ice cream?
It helps united states of america make the ice cream.
2. What happens when you add together salt to ice? Why?
The salt will lower the freezing temperature of the ice. This will make it harder for the ice to melt.
3. Why happens when yous add salt to very cold water ice? Why?
The table salt will still lower the freezing temperature of the ice.
4. For this activity, do you add the salt to the ice or to your water ice cream ingredients?
You lot add the salt to the pocketbook of water ice.
v. Why are we going to utilise table salt to make ice foam?
The salt added to the ice together makes the ice foam colder.
half-dozen. How tin can melted ice be colder than an ice cube?
Past adding salt to the melted ice.
7. Predict how long information technology will accept your grouping to mix the ingredients earlier it becomes ice cream.
6 minutes.
While You lot Make Water ice Foam Questions
one. What mixing method did your group use?
Nosotros toss and shook the bag.
2. What is the temperature of the water ice?
The temperature of the ice is 40 degrees Fahrenheit.
iii. What is the temperature five min. subsequently you lot add together the salt to the ice cream?
The temperature of the water ice subsequently 5 minutes was xxx degrees Fahrenheit.
4. What is the temperature 10 min. after you add together the salt to the ice cream?
The temperature of the ice after 10 minutes was 25 degrees Fahrenheit
5. How long did it take to make your ice cream?
It took 25 minutes to make our ice foam.
vi. How does the texture of your water ice cream compare to other groups in the course who used a different mixing method?
Our ice foam was liquid and foam-similar, compared to most others being solid.
seven. How does your ice cream taste compared to what y'all tin can purchase in the store?
In my stance, the water ice foam tastes better from the store.
eight. How could a chemical engineer help y'all if you wanted to sell this recipe and then you could make thousands of gallons of ice foam a day?
A chemical engineer could help me brand a lot more ice foam past using machinery and making unlike flavors for dissimilar taste preferences.
9. What happens to the temperature of ice when salt is added? Why does this happen?
When salt is added to ice, the freezing temperature of the ice is lowered. The table salt causes a chemical reaction with the water ice.
Evaluate Solution: The water ice cream turned out liquid and foamy after we made it.
GLUING IT ALL TOGETHER
Define Problem: We were chemical engineers and we made ii types of glue and tested how strong they were. We used different ingredients to make casein and flour mucilage.
Before Questions
1. What are considered to be among the earliest adhesives?
Bee wax and tar were considered to exist among the earliest adhesives.
two. What animals, or parts of animals were used to make glues?
Fish, natural safe, animal bones, blood, and milk protein were used to make glues.
3. What is the "technical" proper noun for "super glue" type adhesives?
Cyanoacrylate is the technical name for super gum adhesives.
iv. What are the ii requirements for glue to "work" (form a bail between two materials.)
Adhesion and cohesion are the ii requirements for mucilage to "work."
5. Explain the difference betwixt adhesion and cohesion.
Adhesion is the allure of the aforementioned molecules, while cohesion is the attraction of different molecules.
vi. It is thought that bonding of adhesives occurs at the molecular level. What is the technical name of the force which holds gum to its bonding materials?
The technical name of the forcefulness which holds glue to its bonding materials is the van der Waal forces
7. What characteristic of the molecule is important for this "forcefulness" to be constructive in bonding?
The must exist a positive and a negative molecule for the strength to exist effective in bonding.
8. Why do "super glue" adhesives bond to skin?
The wet from your peel lets the super gum bond to it.
9. Explain 1 of the theories on how Mail-It® notes work?
Postal service-It notes utilise a microsphere-type agglutinative.
10. How do geckos climb on everything?
The geckos have hairs on their anxiety called Setae that allow them to climb on surfaces.
11. There are six full general types of adhesives. List the six and describe the materials on which they are best used.
a. PVA
b. Epoxy
c. Solvent Cements
d. Cyanoacrylate
e. Contact adhesive
f. Polyurethane
Conclusion
one. Which adhesive gave better bonds overall?
Casein glue gave meliorate bonds overall.
2. Explain which adhesive you would utilize if you lot had to build a toothpick bridge?
I would utilize casein glue considering i is stronger.
three. In the glue making process depict the part of a chemist and the role of a chemical engineer.
The chemist makes the product and the chemic engineer tests and produces it.
Casein | Flour |
Separate in Half: 534 grams | Carve up in Half: 205 grams |
Split in Half: 651.5 grams | Split in Half: 158 grams |
Split in Half: 510.5 grams | Divide in Half: 158 grams |
Separate in One-half: 604.5 grams | Split in Half: 134.5 grams |
Split in Half: 487 grams | Split in Half: 487 grams |
Split up in Half: 604.5 grams | Carve up in Half: 299 grams |
Split in One-half: 581 grams | Split in Half: 134.five grams |
Split in One-half: 369.5 grams | Split in Half: 181.v grams |
Evaluate Solution:
Our grouping's casein glue was stronger than the flour glue.
Oil Spill Clean-up
Define Problem
We had to make clean up a miniature oil spill using diverse materials that are like to ones used in a real oil spill.
Conclusion
i. List the job titles that might be included in an technology squad responsible for cleaning up an oil spill.
two. How do you think oil spills can exist minimized in the hereafter?
3. Advise an constructive new method for cleaning up a real oil spill. Defend your method with evidence.
4. How much water was removed during clean-up? What potential issues could this create?
5. There are vii resources used in every technological trouble. Depict what resources yous used and what they might simulate in an actual oil spill:
a. Capital
b. Fourth dimension
c. Information
d. Materials
eastward. People
f. Energy
grand. Tools and Machines
Translate Solution
Resource | Used | Simulate |
Capital | ||
Time | ||
Information | ||
Materials | ||
People | ||
Energy | ||
Tools and Machines |
Source: https://sites.google.com/a/student.roundrockisd.org/jake-shawver/gateway/applied-chemistry
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