Phosphate and nitrates are examples of polyatomic ions. Polyatomic ions, also known as molecular ions, are charged chemical species composed of two or more atoms covalently bonded or of a metal complex that can be considered to be acting to a single unit. Phosphates and nitrates are found in fertilizers and some detergents. When rain dissolves these materials make their way into the creeks and rivers. When the surface waters are rich with these materials, they can cause algae to grow, which completes with other organisms for light and other nutrients.
The observed emission data for the different elements did not look how they were supposed to. However the “peaks” for Hydrogen were found to be 534.52 and 631.24, 534.70 and 569.11 for Helium and 529.73 and 630.71 for Mercury. The Rydberg’s Constant found to 1.1x107 8.5x104 while the known constant is 10967758.34m-1. The percent error of 0.29% and the accuracy of this reading is 99.7. The slope and intercept of the linear regression line is -0.01 3.3x10-5 and 0.02x10-1 1.9x10-6 respectfully.
Rocks and dust litter this tiny planet. It 's surface is extremely similar to our own moon, only with extreme temperature variations. There are no water deposits and no storms on Mercury; it simply floats stagnant through space. Brown and barren, tortured by the extreme heat of the sun, this planet 's surface geology is limited. Venus 's atmosphere is extremely thick compared to the one surrounding our own planet.
All things considered, the results proved that the unknown substance or element was barium since the calculated density was 3.9 g/mL. To expand upon, the density was calculated by measuring the mass of the metal and using the displacement method to determine the volume of the metal. Also, the best method of disposing the storm water would be to contact a Wastewater Treatment Plant (WWTP) so that they could put it through a purification process, making all that water reusable. Meanwhile, the percent of recovery was calculated by the formula Percent Recovery=observed valuetrue value *100%. Furthermore, according to the pie chart created in the data analysis, the sample given contained of the percent by mass for metal to be 5.2%, salt was 3.3%, wood was 3.1%, plastic was 4.5%, rock was 12.5%, sand was 11.8%, and water was 59.6%. Also, the formula used to calculate the percent error was Percent Error=observed value-true valuetrue
The bar states that there is absolutely nothing on the screen and that only 0 bytes out of 1.75 bytes can be downloaded. Eventually, what happens is that Microsoft Windows fails to display the page. VSKsoft DLL Care boasts of the largest DLL-file database and perhaps this is the reason that it can work both on the 32-bit and 64-bit OS. The above-mentioned product can support fifty-nine (59) operating
The phenol-red indicator helps to identify the bacteria. Upon viewing my results it was determined that my colonies did not ferment mannitol. This was easily observed because they remained translucent. The incubation times for all of the inoculated tests were for 48 hours (due to lab schedule, supposed to be 24 hours) and the temperature they were incubated at was at 37C. 37C is the optimal temperature to maintain the state of the agar as well as the ideal temperature for continued microbial growth to occur. My fourth and final test conducted to help identify my bacteria was an Oxidase test.
Gram-staining have performed for Staphylococcus aureus (control); Enterococcus faecalis (control); Nostril microflora in NA, MSA, and PYCa. Gram-staining provides results of the bacteria morphology, type of gram-stain. Catalase test was also done prior to gram-staining. MicrobactTM Biochemical Identification Kit was used for identifying gram-negative aerobic and facultatively anaerobic bacteria.
When testing the effects of hydrochloric acid on different solutions data was collected that showed that liver cells have a buffer and celery do not which supports the original hypothesis of liver cells containing a buffer. A buffer is a solution that resists change in pH when acid is added to it. A buffer will release more hydroxide ions when there is acid added. Each solution in the lab was tested first at its original pH and then after five drops each was tested until there were 30 drops added in. When tested in the lab two controls were used one positive for having a buffer (alka seltzer) and one negative (water).
Soil microorganisms are effective in releasing P from organic and inorganic pools of total soil P through mineralization and solubilization. The major mechanism of phosphate solubilization is the production of organic acids. The major mechanism of phosphate solubilization is the production of organic acids. Among the organic acids produced, gluconic, formic acid, 2-ketogluconic, citric, oxalic, lactic, isovaleric, succinic, glycolic and acetic acids produced from P- solubilizing bacteria. Production of organic acids results in the lowering of pH in the surroundings and many reports suggests a positive correlation between lowering of pH and mineral phosphate solubilization.
It is necessary to understand what each test reveals about the unknown. Citrate tests are performed in order to distinguish between different enteric bacteria by seeing which can use citrate as the sole carbon source. MR/VP are tests that are used to distinguish between different types of fermentation either mixed acid or butanediol and test for the production of acetoin. H2S production is used to determine whether or not the bacteria can produce hydrogen sulfide. Mannitol high salt testing is done in order to determine if the bacteria is salt tolerant and can ferment mannitol.
How did the Romans get around? They obviously did not have cars or planes to get from place to place? We know for a fact that the Romans had quite the empire built. How where they able to transport goods, trade, or even keep each province in touch with the empire’s news and gossip of the time ?