Startle reaction

The estimated amount of time it took for the reactions that involved 2- chlorobutane, 2 – bromobutane, or 2 – chloro – 2 – methylpropane and 2 - bromobutane to form a precipitate could not be determined because no precipitate was formed. It makes sense that no precipitate was from because there was a lot of steric hindrance. The estimated amount of time it took for the reaction that involved 1 – chlorobutane could not be determined because at first glance it looked as if no precipitate formed.…

A clean flame test wire was inserted into 0.2 M NaCl and also placed on the flame reputedly. A bright yellow persistent flame was a positive test of sodium being presented, then repeat the same instructions for the unknown ion. After the flame test wire was clean 0.2M KCl was dipped into the flame resulted a lavender color after several trials as well as the unknown solution. 10 drops of 0.1M Ca(NO3)2 in a test tube and 2-3 drops of 1M Na2C2O4, a white precipitate of calcium was present. The…

Melendez January 31, 2017 BSC2010 Enzyme I: pH and Temperature Lab Report Introduction: (2008, November 11). Without Enzyme, Biological Reaction Essential To Life Takes 2.3 Billion Years. Retrieved January 31, 2017. The basic concept that is being explored are about enzymes. Enzymes are proteins that are known for being sparkplugs in a chemical reaction. Enzymes have a shape and for them to ‘spark’ they must have the proper substrate for it to work U. This does not change the enzyme’s makeup…

Abstract: Using the PhysioEx.9.1 software, I ran Activity 4: Simulating Filtration lab to learn about the filtration of solutes in a membrane system. This experiment was conducted using four solutes: NaCl, urea, glucose, and powdered charcoal. The goal was to learn if any of these solutes passed through the three different dialysis membranes at varying pressures. Does increasing the pore size increase filtration rate? What effect will pressure have on the filtration rate? These are the…

Prac 18 – Reaction Rate of Notongooglenium – Angus Dally Research Question: How does the presence of a Notongooglenium oxide catalyst effect the rate of hydrogenation of ethenol (vinyl alcohol)? Aim The aim of this experiment is to find the effect of the manganese oxide catalyst, a similar compound to Notongooglenium Oxide, on the rate of hydrogenation of ethenol (vinyl alcohol). Introduction Notongooglenium Notongooglenium is a newly discovered element with an atomic number of 24.5. Due to its…

Lingrui Ge Lab report October 18, 2015 Experiment #5 Separation and Qualitative Analysis of Cations CHEM 1315-088  Purpose of the experiment: To identify the substances that are present in a mixture. Materials: Test Solutions and Substances 6 M hydrochloric acid, HCl Sodium bismuthate, NaBiO3 (s) 6 M nitric acid, HNO3 0.1 M potassium thiocyanate, KSCN 6 M ammonia/ammonium hydroxide, NH3 3% hydrogen peroxide, H2O2 6 M sulfuric acid, H2SO4 Sodium bismuthate, NaBiO3 (s) 6 M sodium hydroxide,…

In this lab experiment, we will be using an unknown volatile liquid in order to understand the direct relationship between the molecular weight of a gas and its vapor density, which will help us determine the molecular weight of the unknown. The necessary tools that are essential in this experiment include: a balance, watch glass, two pieces of foil (2.5x2.5 inches & 3x3 inches), boiling chips, a ring stand, a thermometer, a bunsen burner, and an 800mL beaker. During this experiment, we have to…

experiment was an amylase enzyme to lower the activation energy of the reactions, starch solutions of pH 3,4,5,6,7,and 8, these provided different concentrations to project various environmental conditions. In addition, Iodine solution, and a spectrophotometer were needed. Each cuvette contained a specific pH concentration. Then the enzyme extract was added to each pH concentration for a reaction to take place. Once the reaction was completed in ten minutes, HCl was added, as an inhibitor, to…

In the science world, the term “catalyst” refers to something that speeds up a reaction. A catalyst increases the speed of a reaction without changing itself. Instead of asking why things happen, we should ask how things happen. What elements were involved in the equation and what catalysts (if any) were involved? In historical terms, asking how is far more valuable than asking why. For example, US citizens in 1963 may never be able to understand why President Kennedy was assassinated. They…

Chromatography is a key aspect in chemistry. It allows one to separate molecules based on a variety of things. In labs 3 and 4 we looked at two of the characteristics that molecules carry that can help separate them. Lab 3 used spectrophotometry once again, but the concept that garnered the most interest was ion exchange chromatography. Ion exchange chromatography works by separating molecules based on the individual charges they carry. In our case we used anion exchange chromatography, which…