CHAPTER 3 MATERIALS AND METHOD In this research, the materials will be used are Zn Plate (99.9% purity, Merck), Potassium Hydroxide (Merck), Commercial Zn Plate (Energizer) and diesel oil. Water that will be used is distilled water. 3.1 Preparation of Zinc Plate 3.1.1 Pure Zinc The sample of Zn is taken from the other place. Before proceeding to the next step, the bulk of the Zn will be cut into dimensions 1 cm. After that the sample will be experienced grinding process. The purpose of the grinding
total for this experiment. Five Daphnia for each treatment to be tested were transferred by a wide pipette onto a petri dish and put on the Daphnia cooling chamber; the cooling chamber brought down the heart rate of the Daphnia. There was enough water added with the Daphnia in order to ensure survival. To allow slight movement, yet restrict the Daphnia from swimming cotton wool put on the animal. To maintain a temperature conducive to the heart rate measurements, the temperature was maintained at
sure the seaweed would burn and turn into ash so we can start extracting the iodine. Step B- Boil the ash with a 20cm3 beaker of distilled water. Filter when it is still hot. The filtered solution will need to be collected and will turn clear and allow it to cool. We boiled water with the ash in it to extract the iodine into the water so we can extract it from the water by using a funnel.
The paper deals with the effect of nickel (A toxic heavy metal) concentration, and its determination from water and waste water by “Dimethyl Glyoxime Method” Nickel reacts with dimethyl glyoxime in the presence of an alkaline oxidizing agent to form a characteristic red color complex Ni(DMG)2 which is measured visually and photometrically by using colorimeter. Key words : Nickel Sulphate, DMG, Iodine, Potassium Iodide INTRODUCTION "Pollution
The Elodea was already located in a container of water. First, add 150 mL of dilute H2O to a beaker. Use a straw to add carbon dioxide to the dilute H20 by breathing bubbles approximately for one minute. Blowing the bubbles will make sure that each beaker is even with the same amount of CO2. Using 3 different beakers, separate the 150 mL with dilute H20 into 50 mL per beaker. Label each beaker: Elodea Black Light, Elodea Light, No Elodea. Grab the 2 pieces of Elodea from the container using forceps
Ecosystem jar contents A 2 litre plastic jar with 589g of sand was used. It was filled with the following: 1439ml of creek water, 1.73g Elodea, 6.13g Vallisnera and 3.30g of Lemna. The jar was covered with netting. Probe testing Using an electric probe, accurate levels for pH, O2 availability and water conductivity can be measured. Chemical testing Two 5ml samples of ecosystem water was extracted into two test tubes, where chemical indicators for phosphorus and nitrogen were used. Both were shaken and
markers, 3 wooden stir sticks, 100 ml graduated cylinder, 10 ml vegetable oil, 10 ml vinegar, 10 ml liquid, laundry detergent, 240 ml soil, funnel, cheesecloth, scissors, and water. Procedure: The first thing you have to is use the permanent marker to label all 8 beakers.You then fill the beakers labeled 1 through 4 with 100 ml of water using the graduated cylinder. You will then add 10ml of vegetable oil to beaker 2. You will have to mix carefully with the wooden stir stick. Then add 10 ml vinegar to
about 100mL of water into the beaker with the sample and stir the mixture with a stirring rod until it is decently mixed Put a filter on top of a funnel and put and put the funnel on top of a graduated cylinder Slowly pour a small amount of the watery mixture onto the filter making sure the sand stays settled onto the bottom of the beaker Keep pouring in small amounts until all the sawdust and water is out of the beaker leaving only the sand in the beaker Wait for all the water to filter through
solution of the ion into a micro test tube. One solution per tube. Step 2. Add 2 drops of each solution and swirl, this will be the known solution. Step 3. Test the applicator to practice making spots. Clean the applicator by dipping it into distilled water and touch the round filter paper to remove the liquid. Repeat the cleaning process twice. Step 4. Put the spot on the line on the rectangular paper at the region labeled for the cation. Step 5. Clean the applicator twice and repeat the procedure
process of osmosis. Osmosis is diffusion involving water molecules. Osmosis takes place when the water molecules move from an area of high water concentration to an area of low water concentration through a selectively permeable membrane. Five eggs were placed in five different solutions. The solutions used included distilled water and four different concentration levels of a glucose solution. Results showed that, over time, the egg placed distilled water drastically increased while the eggs in the glucose