The molecular lattice/framework holds separate diatomic molecules which is existent in both molten and gaseous states – which means that its reactivity with heat causes it to sublimate from solid’s to vapor. Iodine’s properties consists a melting point of 113.5 degree Celsius and a boiling point of 184.35 degree Celsius. Iodine is the most beautiful and striking of all elements. As it’s a solid, when heated, it doesn’t melt, but it sublimes instead. The result of iodine vapor consists of a violet color and a strong odor that is irritating to a human’s sense of smell.
The goal of the experiment is to synthesize a bromohexane compound from 1-hexene and HBr(aq) under reflux conditions and use the silver nitrate and sodium iodide tests to determine if the product is a primary or secondary hydrocarbon. The heterogeneous reaction mixture contains 1-hexene, 48% HBr(aq), and tetrabutylammonium bromide and was heated to under reflux conditions. Heating under reflux means that the reaction mixture is heated at its boiling point so that the reaction can proceed at a faster rate. The attached reflux condenser allows volatile substances to return to the reaction flask so that no material is lost. Since alkenes are immiscible with concentrated HBr, tetrabutylammonium bromide is used as a phase-transfer catalyst.
Nickel Basic Information: -Symbol = Ni -Atomic Number = 28 -Atomic Mass = 58.69789 -Isotopes: -58(68.27 percent) -60(26.10 percent) -Group Name = Transition Metals -Group = 10 -Electron Configuration = 1s2 2s2 3s2 3p6 4s2 3d8 Physical Properties: Nickel is a silvery, lustrous white metal that is very tough ( it is even harder than iron) and has a shiny polish on top. It can conduct electricity, and its melting point is 1455 degrees celsius and its boiling point is 2913 degrees celsius. Also, the density of this metal is 8.9 g/cm3 and at room temperature, this metal is a solid . Nickel is also extremely ductile because you can create 300 km worth of wire from just one kilogram of nickel. The reason why it is so ductile is
Stainless steel is an inoxydable which means it can’t be readily oxidized (incapable of rusting). Stainless steel is notable because of its good corrosion resistance. Increase in Chromium content increases the corrosion resistance in stainless steels. Stainless steels are differing from carbon steels because of chromium content present in it. When compared with stainless steel, carbon steels are readily rusted when reveal to the combination of moisture and air.
Crystalline type can be divided into orthorhombic and hexagonal crystals, columnar or diamond. The relative density is 2.71 to 825-896.6°C, and it decomposes into calcium oxide and carbon dioxide at about 825°C. Melting point 1339°C, melting point 1289°C at 10.7 MPa. Hard to dissolve in water and alcohol. Reacts with dilute acid and emits carbon dioxide at the same time, showing an exothermic reaction.
Confirmatory tests : confirm the presence of the cation/anion in a given compound. Qualitative tests The addition of hydrochloric acid to solutions containing carbonate or bicarbonate ions or to solid samples of carbonates and bicarbonates causes the rapid evolution (production) of carbon dioxide gas. The equations for the reaction of acid with these ions are: H + (aq) + HCO3 - (aq) → H2O(l) + CO2(g) 2H+ (aq) + CO3 -2 (aq) → H2O(l) + CO2(g) Solutions containing hydrogencarbonate ions react with hydrochloric acid, producing carbon dioxide gas. For example, NaHCO3 + HCl NaCl + H2O + CO2↑ Solutions containing carbonate ions also
In contrast, high pressure will reduce the formation rate of carbon atoms and the carbon deposition efficiency. In the No. 3 test with a high pressure of 32 GPa and a relatively low shock temperature of 2968 K, only multi-layer graphene was formed without other carbon phases. Appropriate high shock pressures and low shock temperatures are favorable for the synthesis of fewer layer graphene. 4.
2. Zinc Oxide Zinc oxide is a white colored inorganic compound which is insoluble in water but is highly soluble in acid or alkaline solutions. It does not occur naturally instead, it is created when zinc is chemically heated and combined with oxygen molecules. There are two possible structural forms of zinc oxide: hexagonal and cubic. Hexagonal crystals are commonly found in nature.
Rate of Reaction Mg / HCl R2 = 0.96 The R2 value is close to 1 which means the data is reliable and accurate. The data for 28.0°C is the furthest away from the line of best fit probably because either the temperature or time was not measured properly. This graph evidently proves my hypothesis right. Although the room temperature experiment was not as close to the line of best fit as others, we can roughly estimate the time taken for the magnesium to dissolve in the hydrochloric acid.
Once the magnesium and the hydrochloric acid were mixed together, the bottom of the beaker felt warm and it started to foam. It produced a strong odor, and became a thick white color. The magnesium also appeared to be lighter after the reaction, After we weighed the beaker the sample still weighed 4.44 grams. The change in color, production of gas, smell, and increase