Plastic Tubing

9.Repeat the procedure with a new mass of baking soda. Before beginning, rinse the reaction vessel with water. Refill the graduated cylinder with water. Check water level in collection box so it has room for the water from the graduated cylinder.

Observation: The bottle with higher concentration of sugar tends to produce more carbon dioxide. After 10 minutes, The

30. Cap the alcohol bottle and remove it from the work area. 31. Fill a test tube about 1/3 full with cold tap water for use in step 34.

      Virtual Lab Part 2: Charles’s Law Procedure: 1. Carefully measure the volume of the trapped gas using the graduations (markings) on the side of the container.

2. Assemble the apparatus shown in Figure 2. Be sure all fittings are airtight. Make sure the rubber stopper and flask neck are dry, then twist and push hard on the rubber stopper to ensure a tight fit.

MATERIALS AND METHODOLOGY I. Preparing the TLC plates Cut a 5x10 TLC plastic sheet. six mark spots must be placed so that the solvents will be placed properly later on through the capillary, this marks must be 1cm apart and 1cm from the bottom edge of the TLC sheet.

3) Repeatedly tab the bottom of the capillary tube so the sample moves down. 4) Place the capillary tube in one of the three metal slots of the thermometer

Seal the flask with a bung (with a glass tube inserted in the middle) and set up the apparatus for gas collection as shown below:

3. Next rinse out the beaker with small amounts of distilled water and transfer the washings to the volumetric flask to ensure none of the solution is wasted affecting the end result.

After recording all data in the lab notes, take a constant temperature bath from the shelf and place it on the work bench, adjust the temperature of the constant temperature bath to 0 degrees Celsius. After that place the flask in the constant bath, let the temperature reach a constant point and then record the new data. After that change the temperature of the constant temperature bath to 40 degrees Celsius, allow the temperature to stabilize and record the new volume and temperature of the gas. Next change the temperature of the constant temperature bath to 60 degrees Celsius, 80 degrees Celsius, and 100 degrees Celsius and record the temperature in Kelvin and the new volume at all of the temperatures listed above. Then clear the work bench and prepare for the next experiment.

Procedure: 1. Take a10 mL graduated cylinder and fill it with 7 mL of water. 2. Next fill a 1000 mL beaker ¾ full with water. 3. Cover the graduated cylinder by putting your finger on top and place the cylinder in the 1000 mL beaker. Make sure the graduated cylinder is under the surface of the water.

a clip to close of the rubber tube large flat bottomed bowl (at least 1000 mL) wide pan wide drinking straw Procedure: Part 1: First, cut the drinking straw so that is is as long as the large beaker is tall. Then insert one end of the rubber tubing through it. Take the large bowl and fill it with water and then set it in the wide pan. Then take the large beaker, turn it upside down, hold the straw with the tube up inside the beaker, and set the beaker into the bowl of water. Use the other end of the tube to evacuate all of the air. If the water in the bowl becomes less than an inch deep, add more water while keeping the tube

11. Remove cap and fill volumetric flask with distilled water till 250ml line, using a pipette once the solution is closer to the line in a drop by drop rate to ensure the solution is exactly at 250ml by looking eye level to the line

Measuring cylinder: Brewery should use the government approved measuring cylinder to check the filling volume in the bottle. By doing that adjust machines of filling by checking all nozzles volume start the filling.

Repeat steps 1-7 with a different concentration which is shown in Table 1.0 and repeat it for 3 trials with HCI, Na2S2O3 and distilled water.