Khan Academy on a Stick
Reacciones químicas (estequiometría)
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Molecular and Empirical Formulas
(EN)
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Introduction to molecular and empirical formulas. Calculating molecular mass.
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El mole y el número de Avogadro
(ES)
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Introducción a la idea de un mole como un número (y no un animal)
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Formula from Mass Composition
(ES)
Figuring out the empirical formula from a molecules mass composition
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Another mass composition problem
(ES)
Another exercise converting a mass composition to an empirical formula.
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Balancing Chemical Equations
(ES)
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The art of balancing equations in chemistry!
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Stoichiometry
(ES)
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Introduction to stoichiometry
- Problema de Ejemplo de Estequiometría 1 (EN)
- Problema de Ejemplo de Estequiometría 2 (ES)
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Stoichiometry: Limiting Reagent
(ES)
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Stoichiometry problem where we have a limiting reagent!
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Problema de Ejemplo de Reactivo Limitante 1
(ES)
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Spectrophotometry Introduction
(EN)
Spectrophotometry, Transmittance, Absorbance and the Beer-Lambert Law
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Spectrophotometry Example
(EN)
Spectrophotometry Example - Determining concentration based on absorbance