Alcohol Content of Vodka by Dichromate Titration
Explore the process of alcohol testing and redox reactions.
Alka Seltzer Strength
Students determine the percentage of sodium bicarbonate in a commercial Alka Seltzer tablet.
Analysis of Hydrogen Peroxide Solutions
Students apply titration to determine the mass percentage of a compound in a solution.
Students confirm Avogadro's Law: equal volumes of gases at the same temperature and pressure contain the same number of molecules.
Learn about identification tests then apply them to foods.
Students confirm Boyle's Law: the pressure of an ideal gas is inversely proportional to its volume.
Characteristic Properties - Melting and Boiling Points
Students learn to identify substances, not by changing their chemical compositions, but instead by observing their physical properties.
Students confirm Charles's Law: the volume of an ideal gas is directly proportional to its temperature.
Chemical Kinetics of the Peroxodisulfate Reaction with Iodide
Students determine the rate expression of the reaction of iodide and peroxodisulfate.
Chemical Reaction Types and Their Equations
Students understand the basics of balanced chemical equations and the four classes of chemical reactions; synthesis, decomposition, single displacement and double displacement.
Introduce students to the LNL platform.
Conservation of Mass
Students confirm the Law of Conservation of Mass: matter cannot be created nor destroyed in a chemical reaction.
Decomposition of Malachite
Students examine the decomposition of malachite into various products.
Students master the concept of density.
Determination of Absolute Zero
Students measure absolute zero in Celsius.
Empirical Formula of a Copper Oxide
Students use data gathered from the formation of copper oxides in order to write empirical formulas for these copper oxides.
Empirical Formula of a Hydrate
Students use data gathered from the decomposition of hydrates in order to write empirical formulas for these hydrates.
Enthalpy Change of a Chemical Reaction
Students explore exothermic reactions in a sealed container, and measure the heat of reaction in an isolated system.
Enthalpy Change of the Decomposition of Ammonium Chloride
Students explore exothermic reactions in a sealed container and apply Hess' law.
Explore enzymatic activity and application of spectrophotometer.
Explore electron orbitals and light emission from excited electrons.
Identifying Halide Ions
Students examine the halogen group of the periodic table.
Identifying Unknown Substances From Characteristic Properties
Students determine the intensive properties of unknown samples and use their findings to identify the samples.
Explore the virtual laboratory while learning the metric system.
Limiting and Excess Reactants
Students understand the concept of limiting reactants: chemical compounds which, according to the ratio of the reacting molecules, are used up first in a reaction.
Molar Mass of Magnesium
Students learn how to determine molar mass using the gas law.
Molar Volume of an Ideal Gas
Students confirm the Ideal Gas Law: under conditions of constant pressure and temperature, one mole of any gas will always occupy the same volume.
Mole to Mole Relationship Between Cu and Ag
Students determine the molar relationship between two reactants and use this ratio to write a balanced reaction equation.
Molecular Weight by Freezing Point Depression
Students use freezing point depression, which occurs when the freezing point of a compound decreases upon adding it to a solution, to determine molecular weight.
Oxidation States of Manganese
Students examine the various oxidation states of manganese.
Students identify the most effective pH indicator for several pH ranges.
Precipitation Titration of Cobalt Chloride
Students master the technique of precipitation titration, which applies titration to a reaction that has a precipitate byproduct.
Pressure and Stoichiometry
Students use the concepts of the limiting reagent and Boyle's Law to write a balanced chemical equation for a reaction.
Qualitative Analysis of Group I Cations
Students understand the concept of qualitative analysis.
Quantitative Determination of Food Dyes
Students use Beer's Law and the technique of spectrometry to determine the amount of food dye present in powdered drink mixes.
Explore atomic structure and radiation.
Students master use of the virtual laboratory.
Separating a Mixture of Compounds
Students separate a mixture of compounds via three separation processes; sublimation, filtration, and evaporation.
Spectrophotometric Analysis of Copper
Students examine absorption spectroscopy using the Beer-Lambert law, which states that absorbance of light is proportional to concentration.
Standardisation of a NaOH Solution
Students use a primary standard in order to prepare a solution of exact molar concentration.
Stoichiometry by Loss of Carbon Dioxide
Students learn the basics of stoichiometric relationships in chemical reactions.
Stoichiometry of an Acid-Base Reaction
Students examine the analytical uses of a neutralisation reaction.
Synthesis of Aspirin
Explore synthesis reactions and the purity of their products.
Temperature Dependence of Salt Solubility
Students prepare potassium chloride solutions with a range of concentrations and measure the temperature at which the salt begins to crystallise out of solution.
The Apparent Molecular Weight of Air
Students investigate whether or not air behaves as an Ideal Gas.
The Law of Definite Proportions
Students confirm The Law of Definite Proportions: different samples of a pure compound always contain the same elements in the same proportions by mass.
Titration of Strong and Weak Acids
Students practice titration of acidic solutions, using a pH meter to measure the end point.
Students practice titration, which compares the volumes of two solutions - one of known concentration and one of unknown concentration - at the point of neutralisation, in order to determine the unknown concentration.
Vitamin C Content of Juices
Students perform a titration to examine vitamin C content in juices.
Volume of Air as a Function of Temperature
Explore the relationship between volume and temperature.