With the use of this technique we placed chlorine, bromine, and iodine into solutions containing chloride, bromide, and iodide. In the reaction the free halogen (X2) oxidizes the other halide ion (Y-) and gets reduced by gaining electron(s). In table 3, chlorine was the strongest oxidizing agent and iodine was the weakest oxidizing agent. Since chlorine was the strongest oxidizing agent it will react more and the weak agent will react less. 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.
The substance dissolves in water but not in alcohol, is transparent when dissolved in water, is electrically conductive when dissolved in water, dries white, and has a high melting point. Out of the four compounds we received to test, according to the data we collected, sodium carbonate was the one that would work the best as a fixative for the glaze. In the experiment we conducted you will notice that the independent variables were the different compounds, while the dependent variables were the results to the criteria that had to be met. Also, during our research, we found that sodium chloride and sodium carbonate worked better than sucrose and salicylic acid because they have ionic bonds. These conditions are more suitable for ionic bonds.
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.
Glycogen has more branches which are shorter than in starch. This exposes more branch endings allowing a faster rate of hydrolysis to back to Alpha glucose molecules. This helps its function of supplying glucose rapidly to
(h) "Hard" water contains a high concentration of calcium ions. Suggest a way to make hard water "softer: Answers: a) It could have been improved if the experimental design said " you have to place seven different nitrates in three different sodium solutions to see if a reaction occur." b) With my evidence silver nitrate was the would the cation that would make most of the anions create a precipitate. c) Chlorine can selectively remove silver ions from a solution because silver has a positive 1 charge and chlorine has a negative 1 charge so when they react it is a perfect
This is evident because the substance tested positive for both the acid test and the base test for zinc hydroxide. Observations of the zinc and iodine reaction without acetic acid: After swirling, the solution starts off to be yellow, than changes to orange. During swirling becomes dark brown- reddish. The tube feels warm, which means that the reaction is exothermic. Soon, the dark red changes into black and then eventually lighter and lighter becomes colorless.
Use a new glucose strip and record Data: Conclusion: According to my data, pH levels do, in fact, affect the results of Lactex. I say this because in my experiment, pre-enzyme, my solutions were all negative except for the soda. I used the test strips to determine if they were negative or positive solutions. After I put in the enzyme, Lactex, my results changed. Vinegar, Antacid, and Soap all became positive solutions after I put in the enzyme.
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
According to an article that dismisses the fear of HFCS, “Out with Gout.” Our increase in our waistline is not necessarily tide to HFCS, rather to the consumption of soda. The soda we drink today is sweetened with HFCS, but if it were not sweetened with HFCS, it would be sucrose-sweetened which in turn would have the same effects as HFCS. The article continues to point to the fact that, “we are getting bigger at the waistline because of what we are consuming, but nothing concrete says that we would be thinner if we had been consuming regular sugar.” (1) HFCS or not, the obesity issue would be happening regardless. It seems to be that we are taking in a larger amount of foods and drinks that are high in sugars, real or not. The article suggests that we cut back on products that are highly sweetened with HFCS or any other sugar.
The purpose of this lab is to determine which of these drinks is more dense than the other. Problem: How can one determine which is more dense than the other, and what calculations, tools and measurements are needed and required to find out? Hypothesis: I think that the Classic Coke is more dense because it has a lot more ingredients and the amount of some ingredients in it, rather than the Diet Coke because even though the Diet Coke has more ingredients mixed in, the amounts differ significantly. Procedure/Materials: As mentioned in the intro, I was attempting to find the density of both sodas and determining which one is more dense than the other. To do that, I needed: A graduated cylinder, a beaker, a calculator and a weight scale, along with small amounts of Classic Coke and Diet Coke.