Lithium-ion battery

first requirement is that the sample must contain electrically charged particles. The second requirement is that the electrically charged particles must be able to freely move when electricity is applied to them. Faraday named these “charge carriers” ions. Faraday also introduced the terms cation and anion to distinguish the…

have a set amount of the unknown salt, and then add measured amounts of water to determine the minimum amount needed to completely dissolve the salt. The cation test told whether the unknown contained barium, calcium, potassium, sodium, strontium, lithium, copper, or magnesium. Given a chart of the colors that each burn, lit the unknown on fire with a bunsen burner and compared the flame color with the colors in the chart. In order to identify the anion, we needed to perform four anion…

weight classify these atoms as isotopes of the element Hydrogen. An ion is an atom with a charge due to changes in the number of electrons (negatively charged particles) in the atom. Ions that have lost electrons have a positive charge, and are called cations. Ions that have gained electrons have a negative charge, and are known as anions. Examples of…

apart into ions. Just because it dissolves in water does not make it solely polar covalent, but since it has a relatively low conductivity, 534 mS/cm in the 0-20000 range, then it most likely is polar covalent. This is further confirmed with the fact that it does not react with NaOH, NaCl, or AgNO3, all ionic substances. The red dye does not react with NaOH since there was no color change when added, and the conductivity simple rose as the NaOH was added, due to the fact the excess ions were…

Cl- has the common ion sources of HCl and CaCl2 in test tubes C and D. Le Chatelier’s Principle explains that adding Cl- as a reactant will shift the equilibrium to the right to produce more product from the added reactant in test tubes C and D. When adding acetone to…

Conclusion: The the precipitation reactions lab eight out of the fourteen occurring reactions were precipitates. A precipitate means that a solid substance was formed or a substance that is not aqueous was formed. The reactions that did not form a precipitate were DNR, which means that they did not react. At station one barium chloride and potassium nitrate did not react but barium chloride and silver nitrate reacted to form barium nitrate and silver chloride. The precipitate at station one was…

thermal energy to move electrons up a level 4("Metal Ion Flame Test Colours Chart," 2014). When these excited electrons return back to the stable, ground state, a photon is produced, and based on the wavelength of the photon, a different color will be produced when the compound is burned 3(Gilbert, Kirss, Foster, & Davies, 2014). The test of the unknown compound produced an orange color. An orange color shows the presence of sodium ions 4("Metal Ion Flame Test Colours Chart," 2014). But the…

used was the unknown due to the need to test its physical and chemical qualities. When a solution of the unknown was made, 1.000 g of the unknown and 1.0 mL of water was used to make it. To test for the possible ions, 1.0 mL of silver nitrate and 1.0 mL of nitric acid were used for the ion test. Ammonium chloride and calcium chloride were the two compounds that were tested on to see if either were the unknown compound. After obtaining a balanced chemical equation that would allow for the…

cation in each of the solutions are calcium, copper, lithium, and potassium. The two salt solutions that have calcium as its cation are Calcium Chloride and Calcium Nitrate. When you compare those two solutions you can see that both of their flames turned orange. The two salt solutions with chloride as their anion were Calcium Chloride and Lithium Chloride. When you compare their results you will find that Calcium Chloride had an orange flame but Lithium Chloride had a red flame. These results…

The D-glucose serves to reduce the silver from Ag1- to Ag1+. The sodium citrate first reduces Ag1+ to Ag, and then functions to bind with the particle surface of silver nitrate particles to allow them to interact. Finally, silver nitrate can aggregate. The silver nitrate combined with D-glucose, sodium citrate, and heat forms an aggregate. The citrate binds with the particle coating and dispels the repulsion between silver nitrate nanoparticles. The nanoparticles then form an aggregate-- a loose…