Equipment:

• Data Collection System
• Absolute Pressure Sensor with Quick Release, Connectors, and Plastic Tubing
• Stainless Steel Temperature Sensor
• Stand, with Clamp
• Graduated Cylinder, 25-mL
• Graduated Cylinder, 250-mL
• Erlenmeyer Flask, 250-mL
• Beaker, 1500-mL
• Balance
• 3 M HCl, 100 mL
• Unknown Metal, 0.2g
• Electrical Tape

Method:

• Gathered all equipment and materials. Inspected all equipment for damage or contamination.
• Set up Data Collection System, assembled GLX, pressure sensor, associated tubing, with stopper, and temperature sensor.
• Measured the volume of the Erlenmeyer flask, by filling it with water, then pouring the contents into the graduated cylinder. Dried flask.
• Wrapped the Erlenmeyer flask with the electrical tape.
• Filled 1500-mL beaker with 1125 mL of water, and placed beneath stand. Placed temperature sensor in water bath.
• Mounted the Erlenmeyer flask on the stand, ensuring that as much of it is immersed as possible within the bath.
• Measured between 0.150 g and 0.180 g of the unknown metal.
• Measured 20.0 mL of 3.0 M HCl, and placed it in the Erlenmeyer flask.
• Covered with Stopper and associated tubing, then measured base atmospheric pressure.
• Removed stopper, and added metal to Erlenmeyer flask. Resealed flask.
• Measured the shift in pressure with the reaction, stopped measurements once pressure leveled off, then repeated the process three more times, for more accurate results.
• Disposed of solutions in designated containers. Cleaned all glassware, set them to dry in their designated areas, and returned all equipment to its point of origin.