The ChemCollective  >> Harper College: Physical Science I- PHS 111

PHS 111 Virtual Lab Activities

In the following activities, you will be using the ChemCollective virtual laboratory. This software allows you to design and carry out your own experiments, much as you would in a real chemistry lab. This flexible simulation will run on most computers without any additional installation. (The virtual lab requires the Java Plug-In. If you do not already have it installed, the page will prompt you with download instructions). Before you begin, please watch the 3-minute instructional video which shows how to use the virtual lab.

Using the Virtual Lab

• Virtual Lab Demonstration Movie: A 3 minute YouTube video describing how to use the virtual lab.


• Required Java software for Windows | Required Java software for Macintosh
  The Virtual lab requires the Java plug-in. If the experiment pages do not load completely, you may need to install this software on your computer.


• Windows and Macintosh users: please use FireFox web browser.
  Errors have been reported when using the Chrome web browsers.

Experiments

• Understanding Solutions
• Vlab: Making solutions from solids
• Vlab: Stock solution acid dilution
• Vlab: Cola and sucrose concentration
• Vlab: Identifying a liquid’s alcohol concentration from its density
• Types of Chemical Reactions
• Vlab: Types of chemical reactions - Set A
• Vlab: Types of chemical reactions - Set B
• Qualitative Analysis
• Vlab: Qualitative analysis
• Vlab: 3 Unknowns

Flying Equations

• Understanding Solutions
• Dilution Problem 1: Prepare a standard solution from concentrated stock solutions.
• Dilution Problem 2: Determine the final concentration of a solution when water is added to a solution.
• Determine the Ion Concentration 1: Determine the final concentration of NO₃^- ions in a mixture of solutions.
• Determine the Ion Concentration 2: Determine the final concentration of NO₃^- ions in a mixture of solutions (more challenging).
• Dilution Problem 3: Determine the final concentration of Cl^- ions in a solution created from solid NaCl and CaCl₂.
• Acid Dilution Problem: Apply dilution concepts to determine the pH of a strong acid solution after a dilution has occurred.
• Types of Chemical Reactions
• Replacement Reactions Problem 1: Determine how much silver nitrate is needed to completely dissolve solid copper.
• Replacement Reactions Problem 2: Determine how much solid tin is needed to completely replace all of the copper in a solution.
• Chemical Reactions and Solutions
• Precipitation Reactions Problem 1: Determine the amount of solid Co(OH)₂ formed when cobalt (II) chloride and sodium hydroxide are mixed together.
• Precipitation Reactions Problem 2: Determine the concentration of potassium nitrate remaining in a solution when lead (II) nitrate and potassium chromate are combined.
• Precipitation Reactions Problem 3: Determine the number of moles of sodium nitrate remaining in solution when sodium carbonate and manganese (II) nitrate are combined.
• Precipitating Ions from Solution 1: Determine how much reactant to add to remove a metal ion from solution.
• Precipitating Ions from Solution 2: Determine how much solid is formed when metal ions precipitate out of solution.
• Precipitating Ions from Solution 3: Determine how much reactant to add to remove an ion from solution created from a solid.

Technical Note: We recommend using Firefox browser to access these materials.

Please if you have any technical problems with the activity.