Nitrate

The determination of precipitates also come from solubility rules. According to Cooper, almost all sodium, potassium, and ammonium salts are soluble which mean that they will not form a precipitate.1 All chlorides, bromides, iodides, and fluorides, nitrates, chlorates, perchlorates, and acetates, and sulfates are also soluble. The only exceptions are as follows: Ag+, Hg2+, Pb2+, Mg2+, Ca2+, Sr2+, Ba2+, Pb2+. For week three, the goal was to determine the mass of the precipitate of the unknown…

lot of heat it’s called an endothermic reaction ; when a process releases a lot of heat it’s called an exothermic reaction, the chemical ammonium nitrate Is quite often used in cold packs because it absorbs a lot of heat when soaked in water, water and…

Here in this paper we are discussing about the Pros and cons of using nitrates as preservatives these days. “Sodium nitrate” and “Sodium nitrite” which are forms of salt. For thousand years salt has been using as preservative to store meat even the refrigerator was discovered. Even today, purified nitrate and nitrite are commercially used to store the food for longer time. Below I explained the Pros and cons of usage of theses preservatives now days. Pros:  These Preservatives helps to…

The Identification of an Unknown Substance Using a Series of Tests Project 2 Chemistry 111 – 552 Peyton Farmer*, Primary Author Partners: Jacob Hicks and Abigail Boudreau TA: Ming Uei Hung Introduction The purpose of this experiment was to use elimination and confirmation tests for both cations and anions, which then allowed the unknown substance to be identified by using logic trees of known solutions. Some qualitative characteristics of chemicals such as the formation of a precipitate, the…

hydroxide, NH3 3% hydrogen peroxide, H2O2 6 M sulfuric acid, H2SO4 Sodium bismuthate, NaBiO3 (s) 6 M sodium hydroxide, NaOH Cation Solutions 0.2 M silver nitrate, AgNO3 0.5 M lead (II) nitrate, Pb(NO3)2 0.2 M mercury (I) nitrate, Hg2(NO3)2 0.2 M iron (III) nitrate, Fe(NO3)3 0.2 M copper (II) nitrate, Cu(NO3)2 0.2 M manganese (II) nitrate, Mn(NO3)2 Equipment…

The calibration curve observed in this investigation was the relationship measured between the concentration of the cobalt solution, or CO(NO3)2, and the absorbance of the wavelength. As it was impossible to measure the true standard curve, the data points and subsequent graphs demonstrated the qualitative information collected and the trend of these values. The calibration curve closely resembled a straight line, with only minimal deviations in either direction. This indicated that the…

and bunker oil. The Grandcamp arrived from Houston, Texas where the port authority did not permit the loading of ammonium nitrate. April 16, 1947 at 9:12 am, S.S. Grandcamp exploded, killing almost everyone on the dock. The series of events happened early in the morning around 8:00 am when longshore men removed the hatch covers to finish loading a cargo of ammonium nitrate fertilizer which already had great amount on board. The Fire Department was called by the railway terminal sounding…

the bacteria moving towards a specific direction. The next tests utilized in determining the unknown was oxidation tests such as oxidase, catalase and nitrate reduction tests. The most pertinent of these tests in the identification process was the oxidase test which was negative, meaning the organism is a facultative anaerobic. Though both the nitrate reduction and catalase tests resulted positive, neither were a deciding factor in determining the unknown.…

From my understanding, the issue of water quality in Raccoon River is an integrated issue. Who is truly responsible for excess nitrate pollution? As a government the state of Iowa is responsible for enacting policy that would limit the amount of nitrate runoff from underground drainage tiles. The government of Iowa must also be responsible for enforcing policy, or delegate the authority to enforce. Whether it’s a state agency, or the drainage districts, there needs to be a policing authority…

organisms that can have both yellow and other florescent pigment as their morphology. The organisms in this genus can also be oxidase positive or negative. In the same genus, some organism can convert glucose to acid and some can’t; and some can reduce nitrate while other can’t. It lacked the result for Indole to tryptophan. Although the test for Pseudomonas are mutual to both ends (positive and negative) for most test, there is still possibility that the unknown can be from this genus;…