Chemistry Collective
Chem Collective: Unknown Concentration of Dna Solution Problem
In this advanced limiting reagent problem, students use the virtual lab to determine the concentration of a solution of DNA by reacting it with known amounts of a fluorescent dye which binds to the DNA.
Texas Instruments
Texas Instruments: Cell Sheet App
Students use the CellSheet App to enter data and text in cells, create cell formulas and use built-in functions. Student explore the utility of this App in science classes, such as Chemistry and Biology. They calculate the molarity of a...
Sophia Learning
Sophia: Converting From Mass to Particles Using a Balanced Chemical Equation
A narrated screencast explaining how to use a balanced chemical equation to determine the number of particles of a substance given the starting mass of another substance. [4:46]
CK-12 Foundation
Ck 12: Stoichiometric Calculations
[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will learn to calculate the amount in moles of a reactant or product from the mass of another reactant or product. They...
CK-12 Foundation
Ck 12: Mole Ratios
[Free Registration/Login may be required to access all resource tools.] In this learning module, students will learn how to calculate and account for the amounts of reactants and products in a given chemical reaction.
Khan Academy
Khan Academy: Gravimetric Analysis and Precipitation Gravimetry
Definition of precipitation gravimetry, and an example of using precipitation gravimetry to determine the purity of a mixture containing two salts.
Khan Academy
Khan Academy: Introduction to Gravimetric Analysis: Volatilization Gravimetry
Introduction to volatilization gravimetry and precipitation gravimetry. An example using volatilization gravimetry to determine the purity of a metal hydrate mixture.
Wyzant
Wyzant: Chem Tutor: Gases
A lengthy page covering most all the gas laws. Each law is described in words and stated as an equation. The use of each law in solving problems is demonstrated. Some problem-solving tips are provided. There are 23 practice problems with...
CK-12 Foundation
Ck 12: Stoichiometric Calculations
[Free Registration/Login may be required to access all resource tools.] Based on the balanced chemical equation, students will calculate the masses or moles of reactants or products generated in a given reaction. They will also convert...
Khan Academy
Khan Academy: Single Replacement Reactions
Definition of single replacement (or single displacement) reactions. Predicting and determining the products using the reactivity series.