Case Solution Essay

effects the concentration and absorbance. The more concentrated that a solution is, the less light passes through it. Purpose This lab allowed us to determine the concentration of an unknown Copper (II) sulphate solution. This experiment was carried out in order to better understand the Beer-Lambert Law, from this lab we proved that the higher the concentration

acetate. Introduction: An equilibrium constant for a solid substance that is dissolving in an aqueous solution is represented by the solubility product constant, where the concentrations of different ions from the solid substance (compound) are used to calculate the solubility product constant. If the solubility product constant vale is high then the substance is very soluble in an aqueous solution. The solubility product constant is denoted by Ksp, and for a common reaction: aA(s) ⇌ cC(aq)+dD(aq)T

phosphate, tube 3 consisted of 0.6 mL of water with 0.4 mL of phosphate, tube 4 had 0.4 mL of water with 0.6 mL of phosphate, tube 5 had 0.2 mL of water with 0.8 mL of phosphate, and tube 6 had 1 mL of phosphate with no water present. After all of the solution was added to the test tubes, 2.5 mL of stopping reagent was added to each test tube in order to denature the enzyme and stop the reaction. After 10 minutes, the absorbance was measured at 620 nm; which are the values used to create this curve based

The purpose of this lab was to to learn how temperature and surface area affect how fast a solute dissolves. This lab relates to what we have recently been learning in class because we have been going into deeper discussion about solutes, solvents, and the concept of solubility. In this lab, we first had to have a trial that tests whether or not the surface area of a solute affects the speed at which it dissolves in the solvent. To do this we first had everyone put on goggles for safety purposes

The 0.0 M to 0.2 M sucrose solutions remained positive on the graph in figure one, while steadily approaching 0.00% mass difference. When the concentrations were 0.3 M to 0.5 M sucrose the percent mass difference became negative, decreasing continuously. As shown in Figure 1, the control 0.0 M sucrose solution yielded the highest percent mass difference (13.24%). From there, the percent difference in mass continually decreased in the treatment sucrose solutions; 0.1 M yielded a 4.76% difference,

Travelink Solutions Case study Introduction The case analysis performed on Travelink Solutions is to evaluate the problem being faced by Travelink and the decisions being made by the management which affect Travelink. The Organization Change Theory helped me to get to know the type of change is going in the organization. With the help of theories I can easily visualize the present scenario of the organization. Change agents are critical as they are the sources of energy and intellect that

Mg2+ Determination using EDTA Linh Nguyen Chem 1212L – 165 Feb 08 , 2014 Purpose and Procedure: The purpose of this experiment is using Compleximetric titration and EDTA to determine the concentration of Mg2+ in solution; and also calculating the percent by mass of MgO in the unknown sample. This procedure results no significant deviations. The procedure for the experiment is from the lab manual referenced below Laboratory Experiments for Chem 1211L & 1212L (6e)

Natasha Tenen Lab: Thursday (3-6 pm) OSMOSIS LAB REPORT INTRODUCTION Osmosis is a special type of diffusion where water molecules move down a concentration gradient across a cell membrane. The solute (dissolved substance) concentration affects the rate of osmosis causing it either to speed the process up or slow it down. Based on this, how does different concentrations of sucrose affect the rate of osmosis? If sucrose concentration increases in the selectivity-permeable baggies, then the

of Potato Cells in Various Salt Solutions Introduction I have been asked to investigate the effect of changing the concentration of a solution on the movement of water into and out of potato cells. I will be able to change the input of my experiment. The input variable will be the concentration of the solution. The 100% solution is sodium chloride dissolved in water (salt water). This will be referred to as the 100% solution from now on. But the type of solution is not important as Osmosis is

mass after the process of Osmosis Test Tube # | Concentration of Sucrose Solution (mol/L) | Initial mass (g) | Final mass (g) | Change in mass (g) | Percentage change in mass (%) | 1 | 1.0 | 5.12 | 3.63 | -1.49 | 29.0% | 2 |