Using Hayden-McNeil Virtual Lab.
Use MicroLab interface and software to experience the chemical analysis automatization that is commonly used in chemical companies of all sizes.
Analyze solutions of known concentrations containing the chemical system to be studied to determine the unknown analyte.
Follow the system prompts and follow the procedure to complete a titration.
Create a Titration curve.
Understand that the mathematical relationship between concentration and
pH is a logarithmic function. Choose the appropriate curve fit for the points.
Titrate and analyze solutions of unknown concentrations using a known solution. Prepare a titration set-up to titrate a base with an unknown acid concentration. Analyze the unknown concentration using the information from the titration.
Analyze the graph obtained and collect information from it.
Properly identify on the graph the equivalence point and the half equivalence point. Using the volume at the equivalence point calculate the concentration of the unknown analyte.
Obtain the [H3O+] using the pH and compare it with the [OH-] of the base. Compare the calculated values to explain if the determined value from the graph is the true equivalence point.
Discuss the possible sources of error in the procedure.
Describe actual and hypothetical variations in the lab procedure that have or would have caused an unexpected result.
Evaluate the connection between the LeChatelier’s Principle and the titration of a weak acid.
Define the LeChatelier’s Principle