Solutions : Ion Concentrations

Predict the mass of copper consumed in a single replacement reaction.

Lab Summary:

In this lab, you will use a PASPORT Conductivity Sensor and Drop Counter to titrate a barium hydroxide solution of unknown concentration with a sulfuric acid solution of known concentration. You will use your data and the stoichiometry of the reaction to determine the concentration of the barium hydroxide solution.

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(student version)

Method:

Use a conductivity sensor and drop counter to titrate a Barium hydroxide solution of unknown concentration with a Sulfuric acid solution of known concentration. You will use your data and the stoichiometry of the reaction to determine the concentration of the Barium hydroxide solution.

Here's What You Need:

Probeware

• PASPORT Conductivity Sensor (PS-2116A)
• PASPORT Drop Counter (PS-2117)
• Xplorer GLX Graphing Datalogger (PS-2002)

Other Materials

• Balance (SE-8756A)
• Small Tripod Base & Rod (SE-9451)
• Buret Clamp (SE-9446)
• Right angle clamp (SE-9444)
• Magnetic Stirrer (SE-7700)
• Graduated cylinder, 100-mL
• Beaker, 150-mL
• Buret, 50-mL
• Pipet with bulb, 50-mL
• Wash bottle and waste container
• Barium hydroxide (Ba(OH)₂, unknown concentration
• 0.02 M Sulfuric acid (H₂SO₄)
• Water, distilled

Lab Manual:

This activity is included in Chemistry with the Xplorer GLX (PS-2819A), complete with Teacher Information pages, student instructions and handouts, and sample data for a total of 19 probeware-based labs. For your convenience, we offer bundles which provide the probeware necessary for the activities in the manual. For more information on these resources and bundles, click here.