Curated OER
How Can We Accurately Make Different Solutions of Different Concentrations?
Students work together to create different solutions made from different concentrations of liquids. They record and analyze their data. They answer discussion questions to complete the lesson.
Curated OER
Conductivity of salt Solutions
Students investigate the concentration level of solutions. In this math/science lesson, students identify three different ionic compounds. They predict the conductivity of each using their collected data.
Curated OER
Determination of the percentage of Acetic Acid in Vinegar
Students determine the concentration of acetic acid when the concentration of the base with which is titrated is known. They investigate how to weigh a sample using the balance, measure volumes using graduated cylinder, explore the...
Curated OER
Spectrophotometry Lab
Students use a machine called a spectrophotometer to determine how much light is absorbed by certain substances. Students record the absorbance and the % of light transmitted for different color solutions, graph their results, and then...
Curated OER
Chemical Stoichiometry Problems
In this stoichiometry worksheet, students calculate theoretical yield and percent yield. This worksheet has 2 problems to solve.
Curated OER
A Self Directed Inquiry into the Identification of Unknowns
Students gain experience in designing an experiment and use logic in selecting specific tests for unknowns. Students recognize the use of spreadsheets in helping one to make clear comparisons.
Curated OER
Acid-Base Calculations
In this acid-base worksheet, students calculate the pH of given solutions and determine if given solutions are acids, bases, or neutral. This worksheet has 3 graphic organizers and 4 problems to solve.
Virginia Department of Education
Aspirin Analysis
Laughter may be the best medicine, but aspirin is also important. Young chemists analyze aspirin tablets using titration in this lab experiment. They then repeat the entire experiment using a different aspirin brand.
Curated OER
Graham's Law Of Diffusion
Students demonstrate Graham's Law by observing a gaseous diffusion. After a lecture/demo, students perform an experiment then complete a write up activity which is imbedded in this plan to reinforce what they have observed during the...
Curated OER
Percentage Composition
In this chemical compounds worksheet, high schoolers determine the empirical formula or the molecular formula for the compounds given. Students calculate percent composition. This worksheet has 10 problems to solve.
Curated OER
Other Aspects of Aqueous Equilibria
In this aqueous equilbria worksheet, learners write the solubility product expressions for the given salts. Students determine what affects the solubility of salts. Learners calculate the pH of a buffer solution. This worksheet has 14...
Curated OER
Teaching about Increased Conductivity: Are Culverts The Culprits?
High schoolers encounter the complexity of identifying the cause of unusual variations in WOW conductivity data. They propose theories on why there was a sudden increase in conductivity in Ice Lake, Minnesota during July of 1998.
Curated OER
Phosphate Testing Contract
Students examine how to prepare an experimental procedure. In this scientific method lesson students conduct an investigation on phosphate.
Chiral Publishing
Chiral Publishing: An Introduction to Chemistry: Molarity and Equation Stoichiometry: Audio Book
This audio book, narrated by author Mark Bishop, describes how to use equation stoichiometry for reactions that are in a solution. Many examples are shown, and general steps to complete the problems are given.
Khan Academy
Khan Academy: Molarity
Learn the definitions of a solution, solute, and solvent. Understand how molarity is used to quantify the concentration of solute, and comcalculations related to molarity.
CK-12 Foundation
Ck 12: Ideal Gases and Gas Stoichiometry
[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will learn the Ideal Gas Law, and know which of the different values for the ideal gas constant to use in a given...
CK-12 Foundation
Ck 12: Mass and the Mole
[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will use molar mass to make conversions between mass and moles of a substance and they will also use the mole road map to...
CK-12 Foundation
Ck 12: Percent Composition and Empirical & Molecular Formulas
[Free Registration/Login may be required to access all resource tools.] In this online tutorial students will learn to calculate the percent composition of a compound either from mass data or from the chemical formula. They will use...
CK-12 Foundation
Ck 12: Gas Mixtures and Molecular Speeds
[Free Registration/Login may be required to access all resource tools.] The following online tutorial helps students use Dalton's Law and mole fraction to calculate the partial pressure of a gas in a mixture. They will learn to calculate...
Vision Learning
Visionlearning: Atomic Theory and Structure: The Mole: Its History and Use
An introduction to the mole, a unit of measurement that quantifies atoms and molecules.
Simon Fraser University
Chem1 Virtual Textbook: Moles and Mixtures
The General Chemistry Virtual Textbook, or Chem 1, is broken into several sections covering various aspects of topics related to chemistry. This section covers a variety of topics related to moles, including molecular weight and density...
Chemistry Collective
Chem Collective: Cola and Sucrose Concentration Problem
In this activity, students use the virtual lab to prepare a sucrose solution for a soda recipe. They next calculate the concentration of their solution in terms of molarity, percent mass and density. Finally, they compare the density of...
Georgia Department of Education
Ga Virtual Learning: Chemistry: Stoichiometry
Through informational text, interactive practice problems, video clips, and real-world application, students are introduced to the science of Stoichiometry.
Open Curriculum
Open Curriculum: Molar Mass
The objective of this article is to compute molar masses of chemicals and to use molar masses in conversion problems.