Another error could have been that the alcohol was poured straight into pea mixture and was mixed in with the pea and water mixture instead of forming a layer on top of the mixture. This affected the results as alcohol is less dense than the water and pea mixture so the DNA should rise through to the alcohol layer, but without the alcohol layer there will be no movement of DNA. To minimise this in the future, it is recommended that you hold the test-tube on an angle and gently pour the alcohol down the side of the test-tube. Another error could be that the stirring time of five minutes for the meat tenderiser wasn’t timed. This could affect the results as if the meat tenderiser isn’t properly mixed in it could mean that it hasn’t being able to break down the nucleus to release the proteins and even if it has done that it could not have broken down the enzymes that break down DNA that escapes the nucleus.
Also, even though human efforts were made to visibly observe the magnesium ribbon, it was extremely difficult to detect the exact time when the magnesium had been completely reduced to ash. As a result, slight time measurement errors might have occurred that consequentially impaired the results. These errors could be avoided in future repetitions of this experiment by curbing the quantity of oxygen that is combined with the magnesium, as well as keeping the lid of the crucible open at all times, so as to continuously observe the substance inside, without threatening to potentially subvert any other
In baked goods, the carbon dioxide produced fizzes and puffs up baked goods. *in the next few equations, we’ll pretend that baking soda is being combined with vinegar* Word equation: Sodium bicarbonate + acetic acid -> sodium acetate + carbon dioxide + water Balanced chemical equation: NaHCO3 + CH3COOH -> CH3COONa + H2O + CO2 b) While baking soda can be used as a leavening agent in baked goods, baking soda also has
The error was how fast the person was spinning the water. It could have changed the temperature of the water easily, by how much calcium chloride was dissolved. Another error was how much calcium chloride was added, it told us to add one scoop, instead of a more accurate measurement, for example, one tablespoon. The scoop could have been not filled all the way, or filled too much. To improve this experiment, we could have had accurate measurements and spinning every 10 seconds.
To fix this ambiguous premise, Rachels can change it to include the issue of an intrinsic characteristic. It would be altered to, “If the difference between killing and letting die was that killing in itself was always morally worse than letting die, then Jones’ behaviour would be less reprehensible than Smith’s. However, if this premise were to change, then so would premise 4 and 5. They would be altered to, “Therefore, active killing and letting die is not always morally different.” and “Therefore, active euthanasia is not always morally worse than passive euthanasia.” Even with these changes, Rachels’ argument may still be deemed weak because although there are situations in which active euthanasia may not be morally worse than passive euthanasia, it does not specify which situations are not morally worse. In conclusion, his argument shows the
Due to this, a great amount of heat was lost to the environment since the apparatus was not in enclosed in order to prevent heat loss. A design including a more precise and calculated apparatus would have potentially improved the accuracy of the experiment. Overall, an improvement of the design of the calorimeter and a more standardized experiment would have led to more realistic and percise results. The extension of this experiment could further involve the analyzation on the energy storage of lipids and carbohydrates. It would lead to the testing of lipid and carbohydrate content in croutons and pumpkin seeds as well as other substances with a high amount of measurable
There have been rare allergic reactions because of the hydroxycitric acid in the fruit which is very similar to the acid found in tropical and cirrus fruits. The effects of using product long-term have not been researched, so it can be dangerous to use it for too long. Some side effect from garcinia are nausea, headaches, and discomfort in your digestive system. One of the brands of garcinia caused hepatotoxicity damage to the liver caused by chemicals. They have stated that not all brands are made equal, nor are they all safe.
Some suggestions for modification include insulating the beaker with paper towels, a cup, or another product. Some changes the group would make would be to prevent the solution from boiling while it is being heated. This, along with the lack of insulation could be what caused only slight crystal growth. Another thing that could have impacted the results was that group members did not have the thermometer placed properly at the beginning of the lab. This inaccurate temperature reading could have caused
Even though they were the same kind of cylinder, I believe that a systematic error might have caused the second cylinder’s weight to be slightly affected, causing the weight to be lowered by 0.05 grams. After this, we added sebacoyl chloride and hexamethylenediamine into those cylinders and
Everyone knows the simple and easy experiment of vinegar and baking soda, but do you really know how it works. This paper will not only explain what makes these two very different chemicals react, but also what materials you will need to accomplish this easy science experiment. Baking soda and vinegar are two different chemical with two very different uses, they are not really even supposed to be used for a science experiment, take vinegar for example, some individuals use vinegar for cooking. Baking soda has a very different use, it is used for bee-stings. When vinegar and baking soda are combined, the hydrogen ions in the vinegar interact with the sodium and bicarbonate in the baking soda.