hydrochloric acid‚ HCl • 0.1 M ethanoic acid (acetic acid)‚ CH3COOH • 0.1 M sodium hydroxide‚ NaOH • 1 M hydrochloric acid‚ HCl • 1 M ethanoic acid (acetic acid)‚ CH3COOH • universal indicator solution • limewater (calcium hydroxide‚ Ca(OH)2) Marble chips (calcium carbonate‚ CaCO3) Copper(II) oxide‚ CuO Small pieces of magnesium‚ Mg Measuring cylinder 10 clean‚ dry test tubes Test tube rack Two spatulas Plastic forceps Dropping pipette 2 × 100 mL conical flask One-holed rubber stopper with bent
Free Carbon dioxide Oxygen Chlorine
looking at Graph 1‚ it is clear to see there is about a 1:3 ratio (closer to 1:2.75) of the amount of iodine reacted to the mass of zinc reacted. Since the law states that samples of a pure compound always contain the same elements in the same mass proportion‚ the data from this experiment proves that‚ regardless of the Synthesis Number used. Purpose: Known amounts of zinc and iodine were reacted to form zinc iodide. The obtained masses throughout the experiment were used to evaluate the validity of
Premium Mass Iodine Zinc
Procedure: The experimental laboratory procedures were divided into two categories. First the formation of phenylmagnesium bromide‚ and second the reaction of the phenylmagnesium bromide with the carbonyl compound. However‚ before any of this could be done‚ the refluxing apparatus for the Grignard reaction was to be flame dried until no moisture remained inside because any water would cause the reagent to decompose and an alkane to form. The reaction would subsequently fail. Drierite was placed
Premium Alcohol Functional groups Magnesium
Decomposition of Calcium Carbonate Theory Calcium carbonate‚ CaCO3‚is one of the most abundant minerals on the Earth. More than 4% of the Earth’s crust is composed of calcium carbonate. It is a major component in limestone‚ marble‚ seashells‚ bedrock‚ etc. Limestone and marble have been among the most widely used building materials for more than 5 000 years‚ from the pyramids in Egypt to the Parthenon in Greece and the Taj Mahal in India. In many places‚ limestone is also the foundation of our Earth—literally
Premium Chemical reaction Carbon dioxide Reaction rate
°C. For the third station‚ with the highest and lowest viscous‚ Hexan had the lowest viscous of 2.03‚ third was Ethanol with 1.39‚ second was Water with 1.33‚ and Mineral oil was the slowest with 1.09. For the fourth and final station‚ the liquid with the fastest evaporation time was Ethanol then last with the slowest evaporation times were water. Evidence and analysis. For station 1 water was the most soluble because it dissolved in almost all the solids and the other two liquids couldn’t. The
Premium Chemistry Chemical reaction Force
Chemistry Lab Report Stoichiometry Design Experiment Percentage Yield of Calcium Carbonate and HCl I. Background Information When marble chips and hydrochloric acid are added together‚ they form sodium chloride‚ water‚ and carbon dioxide. This reaction can be displayed by the balanced equation below; CaCO3 (s) + HCl (l) NaCl(s) + H2O(l) + CO2 (g) As the carbon dioxide is formed‚ it will leave the open beaker as a gas. This will result in a loss of mass. The mass change can then be
Premium Carbon dioxide Calcium carbonate Chlorine
1MA0/2F Edexcel GCSE Mathematics (Linear) – 1MA0 Practice Paper 2F (Calculator) Set B Foundation Tier Time: 1 hour 45 minutes Materials required for examination Items included with question papers Ruler graduated in centimetres and Nil millimetres‚ protractor‚ compasses‚ pen‚ HB pencil‚ eraser. Tracing paper may be used. Instructions Use black ink or ball-point pen.
Premium
concentration (figure 3.2). The substrate concentrations from slowest to fastest initial velocities are 3%‚ 7.5%‚ 15%‚ 22.5%‚ 30%‚ and 27%. The Vmax of the uninhibited reactions was 2.41 mL/s and the Km was 7.033M (figures 3.3 and 3.4). Generally‚ reaction rate increased with substrate concentration. Experiment V: The substrate concentration with the fastest initial reaction velocity was 30% (8.8M) at 0.905 mL/s and the substrate concentration with the slowest initial reaction velocity was 3% (0.882M) at 0.145
Premium Enzyme Chemical reaction Chemical kinetics
headstones are granite‚ marble‚ and sandstone. Granite is an “igneous rock made of mostly quartz and feldspar with some mica‚ and amphiboles” (Granite‚ 2017). Granite has a granular texture. Granite forms from magma slowly crystalizing below the surface of the Earth. The magma then cools down before reaching the Earth’s surface and forms large crystals. Granite is an igneous
Premium Cemetery Grave Headstone
Name____________________________ Pd. _______ Purpose: The purpose of this lab is to look at some properties of three common compounds‚ CO2‚ H2‚ O2. Materials: Zinc Hydrochloric acid Hydrogen peroxide Manganese dioxide Calcium Carbonate (marble chips) Safety:The Hydrochloric acid used in this experiment could cause blindness upon contact with the eyes. Wear your goggles and handle it with care. Procedure: I. Place approximately 0.5 g of Zn metal in a test tube. Add about
Premium Oxygen Carbon dioxide Hydrogen