Chemistry has the reputation of being the preferred subject of only the brightest students aspiring for a career in science. The truth is that chemistry, like all science courses, is all around us. It has something to do with the way water freezes into ice. It’s similar to apples turning brown when their flesh is exposed to the air. Chemistry is in the way sugar dissolves in water. So, here is a list of the top ten entertaining and educational chemistry project ideas.
10 Top Chemistry Project Ideas for Class 12th
1. Using Zeolites as Fertilizers
This requires the planting of seeds.
- Start by removing excess air from zeolites and rinsing them.
- Firstly, plant five of your sources without zeolites. Then, plant five seeds with zeolites (small amounts).
- Plant another set of five seeds using zeolite in double quantity.
- Provide all the plants with sufficient sunlight and water. Keep measuring the height and width daily to compare.
- Do this for 15 days to obtain the results.
2. Effect of Acid Rain on Limestone rock
- Fill the flask with 2g of limestone. Fill the test tube with the different liquid quantities (ex., 15ml vinegar, 5ml water).
- Place the flask with 2g of limestone on the weighing machine. Pour the liquid in the test tube into the flask and take the initial weight.
- Take the change in the weight every 30 seconds to see if it increases, decreases, or remains the same for 5 minutes with a stopwatch.
- Then do this again with different quantities of liquids in the test tubes (e.g., 10 mL of vinegar, 10 mL of water).
- Repeat steps 1 to 6 two or three times to get reliable results.
3. Correlation between Conductivity and Corrosion
Part I: Carbon-steel corrosion coupons must be weighed and placed in the following solutions: sodium chloride solution, produced water (from an oil field), hydrochloric acid (pH 4), and carbon dioxide solution (pH 6). The solutions must be sealed and placed at either room temperature or 50 C (120 oF) for one week. The coupons are then removed, cleaned of excess corrosive residue, and the final mass is obtained. Each solution is tested ten times at both temperatures for 80 trials.
Part II: An LPR probe must be placed in each solution for one hour at both temperatures. A reading [in mils per year] will be obtained from the probe. A conductivity reading must be taken using a conductivity probe. Obtain results and compare them.
4. Catalytic Decomposition
- Prepare a gas-collecting apparatus by fitting a sidearm flask connected to a rubber hose.
- Insert a digital thermometer with a probe through the rubber stopper of the flask.
- Fill a 250 ml graduated cylinder completely with water and invert it into a water trough.
- Place the end of the tube inside the cylinder. Add H2O2 to the flask, past the temp. probe.
- Add the catalyst to the flask and stop the flask. Stir to mix. Gleichzeitig, record the temperature of the reactants and the volume of oxygen collected in the cylinder.
- Repeat this procedure three times per catalyst/concentration.
5. Bio-diesel and Bio-petrol Extraction Process
- Measure 100 cm3 of vegetable oil into the 250 cm3 flask. Weigh the flask before and after to determine the mass of oil you used.
- Carefully add 15 cm3 of methanol. Slowly add 1 cm3 of 50% potassium hydroxide. Stir or swirl the mixture for 10 minutes.
- Allow the mixture to stand until it separates into two layers.
- Carefully remove the top layer (impure biodiesel) using a teat pipette. Wash the product by shaking it with 10 cm3 of distilled or deionized water.
- Allow the mixture to stand until it separates into two layers. Carefully remove the top layer of biodiesel using a teat pipette.
- Weigh the amount of biodiesel you have collected and compare it with the amount of vegetable oil you started with.
6. Invisible Ink
- In a small saucepan, combine a tiny amount of water and cornstarch (approximately 2 tablespoons cornstarch and 4 teaspoons water) and whisk until smooth.
- For a few minutes, heat the mixture.
- Combine the ingredients and stir well (heat each mixture separately).
- Write on paper with a toothpick dipped in the cornstarch and water mixture. Allow the paper to dry.
- Dip the little sponge into the iodine solution and wipe the form carefully to see the message.
7. Synthesis and Characterization of Self-Healing Polymer
- New molecules should be synthesized using organic chemistry techniques. Using dry solvents, the reactions must be set under inert conditions (under argon).
- Extractions and column chromatography should isolate the compounds.
- Nuclear Magnetic Resonance and Mass Spectrometry should confirm the structure of the molecules.
- The monomers should be polymerized under different conditions and followed by Differential Scanning Calorimetry to study the polymer’s formation and behavior.
8. Rocket Launcher
- The first step is to build your rocket launcher using cardboard tubes and disposable plates. Use packing tape to secure each cardboard tube on a plate.
- Prepare the Alka-Seltzer tablets to be used as fuel in your rocket.
- Snap the pill into four equal pieces. Keep your equipment ready: a cardboard launcher, your Alka-Seltzer fuel, your film canister half-filled with water, and the cap for the canister.
- Quickly cap the film canisters and insert them into the launcher’s cap-side down. If your rocket doesn’t detonate after several minutes, tilt the launcher away from your face and slide the film canister onto the floor.
- Hold the canister with the cap facing away from your face and pop it off with your thumbs.
- Then, try the activity again using 1/3 of an Alka-Seltzer tablet.
9. Extraction of Nicotine Sulphate from Samples of Cigarettes
- Remove the covers and collect the contents of the cigarettes on separate pieces of paper.
- Weigh 1 gram of each sample using a physical balance and label them. Place them in a dry place. Dissolve each sample in a calcium hydroxide solution taken in 100ml beakers.
- Stir them with the help of a glass rod. Filter the different solutions after the nicotine has fully dissolved.
- Collect them separately in separate funnels. Add two test tubes of kerosene oil to each separating funnel. Before pouring, ensure that the valve is closed. Leave it for two days without disturbing it.
- Two layers – one heavy layer on the bottom and the second lighter layer on the top – separate them. Open the funnel valve and let the heavy layer out through the open valve. The lighter layer remains in the separating funnel. Add half a test tube of concentrated sulfuric acid to each separating funnel. Open the valve of the separating funnel and collect the heavier layer in a test tube. Heat the crystals in liquid form, subject them to cold water, and leave them for a day or two. Weigh the crystals, hence obtained with the help of a physical balance.
10. Preparation of a Smoke Bomb
- Pour about 3 parts potassium nitrate to 2 parts sugar into the skillet. Apply low heat to the pan. Stir the mixture with a spoon using long strokes.
- The mixture will melt and become a caramel or chocolate color. Continue heating and stirring until the ingredients are liquefied. Turn off the heat.
- Pour the liquid onto a piece of foil or into the cardboard roll. You can pour the smoke bomb into any shape, onto an object, or into a mold.
- While the mix is still hot, push a pen lightly down the mold and remove it.
- Allow the smoke bomb to cool for around an hour.
- Now, remove the pen and insert the fuse. Secure the fuse with cotton. Observe the results.
So there you have it: some simple chemistry project ideas for students in 12th grade. If you have any more chemistry project ideas that should be included in this list, please let us know in the comments area. Until then, good luck with your studies!
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