Solubility

in the world. The hypotheses were wrong for the last two mixtures. It was hypothesized that these solutes would not dissolve in their respective solvents. However, they did. Next time, to avoid misjudgements and produce accurate hypotheses, the solubility of baking soda and corn starch in vinegar and flour, respectively, should be taken into…

In the testing stream water there will be nitrates, phosphates, dissolved oxygen, turbidity, different temperatures, and pH levels.The most important factor to stream testing is the temperature of the water. If the temperature increases the amount of dissolved oxygen decreases. (EPA and Staff, 2012)Phosphates are present in the water through human and animal wastes. (Oram, no date) Phosphates are used in laundry soaps, cleaners, industrial effluents, and fertilizers. (Oram, no date) Nitrates…

Silver, lead, arsenic, bismuth, antimony, selenium, and nickel are common impurities existing in copper anodes. Some impurities dissolved from the anodes can precipitate, if their concentrations in the electrolytic solution are above saturation levels. Some of these precipitates can settle down but some are floating slimes and can be a source of cathode contamination by their incorporation into the cathode 16. These floating slimes are amorphous and typically have compositions of Sb-As-O and…

This experiment directly related to class being that it is based on solubility, showing what happens when 2 particular chemicals dissolve in each other. The light sticks we experimented with contained 2 particular chemicals that produced an interesting reaction of giving off energy in the form of light when they mixed. The…

Abstract In this study, a CO2-respensive GM-AD-HA hydrogel derived from electrostatics crosslinks and supramolecular bond will be produced and studied about its mechanical properties and physiological performance. It is expected to have application in restoring cartilage and controllable delivery of Epirubicin Background of research Hydrogels have crosslinked microstructure and can swell up in water without resolving. Their soft and rubbery nature minimizes inflammatory reactions of the…

Discussion of Results: This experiment consists of three different parts. The main goal of the experiment is to identify the unknown compound the lab group was given. Along with this, the group is to discover the compounds many physical or chemical properties. Lastly, the group is supposed to create and preform two syntheses of the compound and see how they compare and contrast in different areas like costs effectiveness, safety, and potential yield of the compound. Through all of these…

Solid solubility is whether that solid can dissolve in specific solvent or not. When a solid dissolve, the ions that comprise the solid will disperse in the solvent thus create a different concentration distribution within the solvent solution. Thus we can view this as a flow of ion from high concentration to low concentration (there’s a flow of ions) Electrical activity is the ability for electron to travel within the material. Specific solid material molecule will have free electrons to…

DISCUSSION 6.1 FTIR SPECTROSCOPY It was observed from the FTIR graph that there was no shifting of peaks of metronidazole i,e., characteristic peak of the amine group (N-H streching) present in imidazole nucleus at 1030 cm-1 and presence of NH2 group at 3298 cm-1 in formulation. Hence, there was no interaction between drug and polymer. 6.2 METRONIDAZOLE MICROSPHERES 6.2.1 Optimization of speed (rpm) for preparation of microspheres Metronidazole microspheres were prepared using emulsion…

Where M.R is the moisture loss ratio, M_0 is the initial moisture content, M_t is the moisture content at time t, M_e is the equilibrium moisture content, t is time (minutes), and a, b, c, and k are constants. For the effectiveness of diffusivity, Fick’s equation was used (5) to estimate the dehydration kinetic of different osmotic conditions. M.R=((M_t-M_e)/(M_0-M_e ))=〖8/π^2 e〗^((-(π^2 Dt)/(4L^2 )) ) …(5) Where D is the effective diffusivity, and L is the length of the (cubical) sample.…

Hey Mom, I know you’re dying to know how my semester is going so I thought I’d share with you some of the assignments I’ve been working on. I just finished my first chemistry lab project involving drugs! Yes, drugs, but not the ones you’re thinking about. We worked with Sulfanilamide, Phenacetin, Acetaminophen, and your favorite, Caffeine. The goal for the experiment was to determine where the drugs may reside according to their properties. We learned that there are parts in the cell that are…