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Explore the concept of mechanical advantage with simple machines like levers. Understand how input force can be multiplied to output a greater force, albeit over a shorter distance, using the law of conservation of energy. Discover the relationship between force, distance, and work, and get introduced to the concept of moments. Created by Sal Khan.
Using this ratio, we could calculate how many moles of Al are needed to fully react with a certain amount of Fe 2 O 3 , or vice versa. In general, mole ratios can be used to convert between amounts of any two substances involved in a chemical reaction.
Computational Chemistry is... A branch of chemistry That uses equations encapsulating the behavior of matter on an atomistic scale and Uses computers to solve these equations To calculate structures and properties Of molecules, gases, liquids and solids To explain or predict chemical phenomena. See also: Wikipedia,
Now we're ready to learn about stoichiometry. This is an ultra-fancy word that often makes people think it's difficult, but it really is just the study or the calculation of the relationships between the different molecules in a reaction. This is the actual definition that Wikipedia gives.
A mechanical calculator, or calculating machine, is a mechanical device used to perform the basic operations of arithmetic automatically, or (historically) a simulation such as an analog computer or a slide rule.
1 lis 2018 · The mole is the key concept for chemical calculations DEFINITION: The mole is the amount of substance in grams that has the same number of particles as there are atoms in 12 grams of carbon-12.
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