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Quantifying Chemical Reactions: Stoichiometry And Moles

28 minutes 28 seconds

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To manipulate chemical reactions on a large scale, scientists use stoichiometry to quantify those reactions. The use of stoichiometry ensures there are the right amount of reactants and products. Without it, reactions can be incomplete, with expensive materials wasted and harmful byproducts created. Using stoichiometry, scientists are creating chemicals that take the place of petroleum in fabricating sustainable materials. At a different lab, scientists are mimicking the process of photosynthesis to convert the sun’s energy into storable chemical energy. Part of Chemistry: Challenges and Solutions Series.

Media Details

Runtime: 28 minutes 28 seconds

Person in a science lab working with complex machinery. Caption: There is almost no limit to the ways we transmute matter.
Chemistry: Challenges And Solutions
Episode 1
28 minutes 28 seconds
Grade Level: 10 - 12
Plastic tube containing clear, pebble-like objects is attached to a larger tube. Caption: The gas is filling up a constant volume.
Chemistry: Challenges And Solutions
Episode 2
28 minutes 28 seconds
Grade Level: 10 - 12
Hollow glass tube with roughly diamond shaped object in the center surrounded by glowing light. Caption: you get the characteristic color of this purplish-blue.
Chemistry: Challenges And Solutions
Episode 3
28 minutes 28 seconds
Grade Level: 10 - 12
The periodic table of elements. A color-coded grid with letters representing each element. Caption: Each row of the table represents a pattern of chemical properties
Chemistry: Challenges And Solutions
Episode 4
28 minutes 27 seconds
Grade Level: 10 - 12
Geometric illustration of atoms. Caption: So here we've drawn in all the atoms.
Chemistry: Challenges And Solutions
Episode 5
28 minutes 26 seconds
Grade Level: 10 - 12
Gloved hand holding an electronic chip with a pair of tweezers. Caption: they call it an artificial leaf.
Chemistry: Challenges And Solutions
Episode 6
28 minutes 28 seconds
Grade Level: 10 - 12
Person in a lab setting filling a container from a faucet. Caption: A calorimeter is simply anything used to measure heat.
Chemistry: Challenges And Solutions
Episode 7
28 minutes 30 seconds
Grade Level: 10 - 12
Two glasses with colored liquid in them. One glass has a person holding a cylindrical electronic device in the liquid. Caption: and check the parts per million of solutes.
Chemistry: Challenges And Solutions
Episode 8
28 minutes 29 seconds
Grade Level: 10 - 12
4Fe+3O2+4H2O converts to 2Fe2O3*2H2O. Caption: This causes the iron to become a hydrated iron oxide,
Chemistry: Challenges And Solutions
Episode 9
28 minutes 27 seconds
Grade Level: 10 - 12
Person in a science lab. One beaker contains an orange liquid, and one beaker contains a green liquid. Caption: It's orange. That means its pH is 5.
Chemistry: Challenges And Solutions
Episode 10
28 minutes 30 seconds
Grade Level: 10 - 12