Which contaminant seemed to have the most potent effect on the water? The effects of the contaminated water were that the mixture showed each water type to have a brown color to them. The water type that seemed to have both a surprising and potent effect was the water and soil mixture. I would have thought with using strictly water and potting soil the water turned the darkest brown out of all the other contaminants that I used for the mixture. The vinegar and soil mixture seemed to have cleaner look to them.
Could colors other than red be used? Safranin is the current counterstain being used. Other colors have been used in the past, such as a yellow color. 4. What is the advantage of the Gram stain over a simple stain such as methylene blue?
This explanation can be demonstrated in table 3 also because the results of the reactions demonstrates that chloride reacted more by the color of the product compared to the color of chloride in the mineral oil. Also it also demonstrates that iodine is the weakest oxidizing agent because the results show that iodide didn’t change much from the color that it showed in the mineral oil. In example 6 we have shown the activity series for the halogens used in this
Both flask’s pH went up 4. Which substance, water or the buffer does a better job of maintaining pH when small amounts of strong base are added? Water does a better job at maintaining pH under these circumstances, but only slightly 5. Write equations for the reactions taking place in each of the flasks. For an equilibrium arrow ( ) is an equals sign (=) (Unless you know how to do equilibrium arrows).
This was the solution that was used in order to obtain the absorption spectrum for each of the different iron (II) ligand examples different flasks. Each of the five flasks were
It also affects both sides of the body evenly. Vitiligo is more noticeable in darker skinned people because of the contrast of the white patches against dark skin. The patches of skin are smooth like the rest of the skin around it. Vitiligo is a multifactorial, polygenic disorder with a complex pathogenesis. That means it is hard to find out where or who it came from.
They are both very soluble in alcohol and hexane so that doesn’t help, but in water ethyl ether is semi soluble and pentane is in soluble. This would make us lean toward pentane but we felt strongly that ethyl ether because of the density was a much better test because there is much less human error and the we asked about how do you decide if something is insoluble
The results showed that tube 2 had the fastest rate of reaction; this tube was exposed to the neutral pH of 7. The results showed that tube 3 had the second to fastest reaction time; this tube was exposed to the more basic pH of 9. Tube 4 was the control tube and reacted the third fastest. The conclusion of the experiment is that the enzyme catecholase and its substrate catechol react the most efficiently in their most optimum pH level of 7, which is neutral. The catecholase enzyme and its substrate catechol cannot react in a pH level of 3, which is too acidic.
In the toxic mussels, the visible light absorption spectrum revealed a pattern that was characteristic of phytoplankton pigments. With further investigation, the pigments were found not to be poisonous though, and the aqueous layer consisted of the toxin. Column chromatography was used to separate the layer into organic acids and bases. Acids that were ionized quickly passed through because the resin called XAD-2 would not hold them in their polar ionized form. Out of all the acids that passed through, only one was found to be toxic.
The beetroot cylinders in the warmer water baths clearly coloured the water more than the ones in the lower temperature baths, this can be seen in the big difference of absorbance between 8 °C and 85 °C water samples. The beetroot cylinders in the 8 and 23 °C water baths turned only lightly pink, where the warmer water bath samples turned to darker red. 2.2. Data Processing Table 2. Processed data from raw data table Temperature (°C) | Mean Absorbance (Arbitrary units, ± 0.1) | Standard Deviation (± 0.1) | 8 | 0.1 | 0.1 | 23 | 0.2 | 0.2