Task 7 : Method Of An Copper Sulphate Solution Into A 100cm3 Beaker

Use a glass beaker to pour an adequate amount of the liquid substance and use the pipette from the glass beaker.

Finally I put the bung in the volumetric flask, and I relentlessly inverted it to fully mix the solution.

In the lab we filled the first beaker up with water. Then we took a pipet (filled with the liquid) and dropped water droplets onto the

After added, pick up the beaker and swirl it around lightly for a short period of time.

After the 5-minute period, take the Elodea and thermometer out of the beaker, pour the mixture into the beaker down the drain and rinse.

7. Using the slider on the right hand side, add NaOH to the HCl in the Erlenmeyer flask (This action is known as titrate). Add the indicator until the color of the indicator turns a light shade of pink.

Add RO water to the 25 ml volumetric flask up to the mark. Put stopper on the flask and shake it properly.

XII. Take the 250 ml beaker to your lab bench. Set up a gravity filtration with a plastic funnel, folded wet filter paper, and an Erlenmeyer flask. Pour the content in the 250 ml beaker slowly through the filter paper. Wash the filter paper with deionized water. Dispose of the filtrate in the proper labeled waste container.

1) Pour 25 mL of the 1 M hydrochloric acid into the beaker and rinse the solid by swirling the acid around in the bottom of the beaker.

First, pour about 15 ml of substrate solution into a 25 ml beaker. Then, put the substance in a hot water bath and set it to 30‹C. Next, add a filter paper disk soaked in yeast solution

The solution is made up to the graduation mark with 50cm3 of 2.0M H2SO4. The conical flask is stoppered and inverted 10 times to ensure sufficient mixing. Water is sprayed around the glass surface to minimize chances of unwanted Fe residues.

Determine how many grams of Copper Sulfate Pentahydrate you will need for your 100 mL of Water using the solubility curve. (See solubility curve)

3. Carefully pour 40ml of sodium thiosulfate into the flask, gently swirl and start the stopwatch. 4. Place the flask on the white tile over the cross. 5.

Add 25 mL of distilled water into the beaker and stir with a glass rod to dissolve all the potassium iodate. Pour the potassium iodate solution through a filter funnel into a 250 mL volumetric flask. Rinse the beaker with distilled water and pour this water into the volumetric flask. Add in more distilled water to the volumetric flask up to the mark on the neck of the flask. Put the stopper in place and shake the flask until you get a homogenous solution. The standard solution is now ready for use in part B.

1. A burette is filled with the 0.1M sodium thiosulphate solution to be standardized. There are no air bubbles in the burette.