Silver nitrate

then took a blue test strip of silver nitrate and placed it into a zip lock bag for our control. We would also take to additional blue strips and place one into a zip lock bag and begin respiration process of exhaling into the bag to test for the excretion of water. For part B we tested for the excretion of salt by rubbing a small piece of cotton in a clean palm, non-cleaned palm, and urine and then placing the cotton into a test tube. 5-6 drops of silver nitrate…

3 M acetic acid; which means #68 was 0.1 M aluminum nitrate. #62 was a weak acid that did react with NaOH forming brown precipitate, so it was 0.1 M silver nitrate. Both of #63 and #69 are weak acids, but, #63 did react with 0.1 M silver nitrate, so it was #63 is 0.1 M zinc chloride, which means #69 is 0.1 M lead nitrate. #67 did react with 0.1 M silver nitrate, where #64 did not. In addition, #67 formed white precipitate with 0.1 M lead nitrate, so #67 was 0.1 M sodium chloride. So the #64 was…

evolution of CO2 on addition of sulphuric acid. Among the soluble solids, two (1 and 12) formed precipitates in sulphuric acid. One was expected to be Barium chloride and to react with silver nitrate. Hence, (14) and (13) were reacted with 1 and 12. This led to the identification of 1 as barium chloride and 13 as silver…

After the alkyl halide was formed, silver nitrate test and the sodium iodide test are done to classify the compound. These halide tests are done to characterize and assess the molecule by determining which functional groups the product contains. The silver nitrate test reacts in a Sn1 reaction while the sodium iodide test reacts in a Sn2 reaction. Thus, a reaction with the silver nitrate to a product with a tertiary carbon will react faster than for a secondary…

about nitrate, we actually must understand what a polyatomic ion is. A polyatomic is an ion which consist of molecules, thus, it may also be referred as a molecular ion. Two or more atoms covalently bond or share electron pairs with each other to make up a polyatomic ion. Once they have bonded, they become considered as a whole single ion. Moreover, it is known to have a charge, most polyatomic ions have a negative charge but there is an exception with a positive charge. In this case, nitrate…

Introduction Unknown substances can be found everywhere. Whether it is the mysterious crust on the desk, or the sticky material found at the bottom of an unwashed bowl, there is a curiosity as to what that substance could be. In science, the unknown substance is called the analyte (1). The unknown substance, taken from the Gulf of Mexico, is tested to determine the true identity of the substance. In order to find the analyte, there are two different scientific methods that can be applied. The…

Following WHMIS, it is vital that safety be a priority when conducting labs. Especially when handling chemicals, the ideal setup of labs should avoid any obstructions and potential hazards that may occur. This is due to the possible dangers: flammable and combustible chemicals (alcohol, sodium), oxidation (hair dye), bio hazardous products (which causes AIDS, rabies), toxic items (lead, benzene), poison (carbon monoxide), corrosive compounds (bleach), dangerously reactive chemicals (fluorine)…

sodium hydroxide (NaOH), a strong base, also had no visible reaction. However, the resulting solution was a lot more basic. Reacting the unknown compound with sodium nitrate (NaNO3), a salt, did not have a visible reaction nor did the pH of the resulting solution change. The last reaction involved the unknown compound and silver nitrate (Ag(NO3)2), another salt. A milky, white precipitate was produced (AgCl2) and there was no change in pH. After performing these reactions, it was apparent that…

Fingerprint Development Techniques Fingerprint development techniques are vital in crime scene analysis, personal identification purposes, and forensic research. There are three different types of fingerprints that are known: patent prints, plastic prints, and latent prints. Patent prints are common and the easiest to locate because they are visible to the naked eye, while plastic prints are also easy to locate, but far less commonly found than patent prints. Latent prints are the most common…

Formation of precipitate, which is a solid formed in a chemical reaction. Precipitate can take place when solutions containing ionic compounds are mixed and an insoluble product forms. An example is mixing is mixing silver nitrate and sodium chloride in water, which will cause silver chloride to precipitate out of the solution as a solid. Color change can also indicate a chemical reaction has taken place. An example…