Chemical decomposition

Lab 1 – Ion Exchange Chromatography Danielle Small John Wright 20/01/2016 Introduction: This lab will use ion exchange chromatography – a process in which differently charged ions are separated, by altering the pH of the solution; which shifts the equilibrium of the molecules. During this lab we will separate two compounds from one solute that will be formed by amalgamating a ‘slurry’ – provided by the instructor. Resin or cellulose is used to create a sound support unit in order maintain a…

The sparking, luminescent and clear thing we call water is essential to almost every organism on planet Earth. Water so much more complicated and interesting than most people think. Water is made out of two hydrogen atom and one oxygen atom. Two major characteristics of water is cohesion and adhesion. Cohesion is the attraction of the water molecules to itself. Adhesion on the other hand is the attraction of water molecules to the substance that also have dipolar characteristics. The cohesion of…

An enzyme is a macromolecule that acts as a catalyst in which it speeds up reactions by lowering activation energy (Campbell 151,152). Activation energy is the energy that is required for a reaction to take place (Campbell 152). In the reactions there are substrates which are reactants that enzymes act on (Campbell 153). Enzymes bind to the substrates then creating an enzyme-substrate complex, and while the two are joined together the catalytic action of the enzyme changes the substrate to the…

the empirical formula of a compound when the amount of it is known. By dehydrating the copper chloride hydrate sample and using it for an elemental copper-producing chemical reaction, one can isolate the masses of the water, copper, and chloride and determine their mole ratios. Since the Law of Definite Proportions states that a chemical compound always contains fixed proportions of its constituent elements by mass, the mole ratios can be used to find the empirical formula of the copper chloride…

Design- In this experiment we selected the happy sack to use for our experiment, as this sort of ball doesn’t bounce when dropped to the ground and this then gives us more accurate data for us to compare with the theoretical time. To record the closest accurate time and distance we could get, the equipment we chose to use, were two stopwatches so that we could compare the human reaction times and a tape measure to correctly measure the distance that the ball is going to fall from; which counted…

Equipment: // Sodium thiosulfate solution (of concentrations 0.1M, 0.2M, 0.3M, 0.4M). // Hydrochloric acid (2M). // 100cm3 conical flask. // 10cm3 measuring cylinder. // Dropping pipette. // Small piece of plain paper with a large X drawn with think black pen. // Stopwatch. // Goggles. Variables: Independent - The concentration of sodium thiosulfate solution (0.1M, 0.2M, 0.3M, 0.4M). Dependent - The time taken for the cross to not be seen. Control - // Concentration and volume hydrochloric…

DATA ANALYSIS The linear relationships between the time elapsed and the volume of gas indicates a constant enzyme reaction rate. The activity rate of catalase in figure 1 is calculated to be approximately 0.15mL/sec. The following figures show how this rate of reaction is affected by different external factors. The results in figures 2 and 5 show an increase in either enzyme concentration or substrate concentration will increase the enzyme activity. In figure 2, the 0.75% enzyme concentration…

1. The actual volume of oxygen consumed per minute, V̇O2, is calculated using an equation that is a reasonable estimate, but one must keep in mind that said equation is based on the fact that both the volume of inspired and expired air are equal and that there is no change within the gases that are stored inside the body. The same can be said for the equation that is used to calculate the volume of carbon dioxide that is produced per minute, V̇CO2. However, since it there is in fact a change in…

Hydroboration/Oxidation of an Alkene Introduction: An alcohol can be added across the double bond of an alkene via hydration, which is the addition of a proton and alcohol group to the double bond. This reaction can yield either a Markovnikov alcohol or an Anti-Markovnikov alcohol. If the reaction is carried out in acidic conditions, the reaction yields a Markovnikov alcohol. The mechanism includes the formation of a carbocation intermediate, which has a lower activation energy when it is…

Umama abid Lab Partners: Olivia, Emily Ms. Olenick SBI4U 9/23/2017 Analysis The solution in the dialysis tube turned bluish black in color due to the transfer of iodine from the beaker to the bag which contains starch and glucose . The solution in the beaker turned brown after Benedict’s test ( table 1) . This indicates that the dialysis tubing was permeable to both glucose and iodine but not starch ( work helper, 2017) . Starch didn't pass because the solution in the beaker which…