• Sodium Chloride Oxygen Beaker Enzyme
    1,273 words
    DESCRIPTIVE TITLE The Effect of Different Amounts of Sodium Chloride on the displacement of oxygen. INTRODUCTION The dependability of the rate of an enzyme-mediated reaction is based on two factors: the substrate concentration and the concentration and action of the enzyme that catalyzes the reaction (Vander, et. al. , 2001). Enzymes are catalysts that produce chemical reactions in cells. Enzymes which are large proteins perform a reaction which acts upon a substance known as a substrate. When ...
  • Road Salts Sodium Chloride
    304 words
    On Scholar's Day I attended the Environmental Science presentation entitled "The Environmental Impacts of Chemical Deicers and Road Salt." I was required to attend this presentation for my Environmental Issues class as well. The presentation was approximately 25 minutes long and included a powerpoint presentation. In the presentation itself, it stated the impacts of road salts and deicers, the state uses on the roadways during the winter months. The most commonly used road salt is sodium chlorid...
  • Experiment To Investigate The Resistance Of Brine Soaked Paper
    1,294 words
    This experiment aims to investigate the resistance of brine soaked paper when an electrical current is passed through it. Planning: Previous experiments have taught me that the electrical resistance will rely on several key variables. These include the length of paper, its thickness but most importantly the number of sodium and chlorine ions carrying the charge. Knowing this, I have decided to investigate the concentration of brine in this experiment. To provide an accurate prediction, I must r...
  • Investigation Into Osmosis Potato Cylinders
    1,470 words
    Introduction Knowing that osmosis (a diffusion of water) will occur across a semi-permeable membrane whenever there is a difference between the water concentrations on the two sides of the membrane, and knowing that when this happens to cells they will either become turgid if water flows into them, or plasmolysed if water flows out of them, and thus change their volume, we want to test the hypothesis that: If the concentration of a solution into which a cylinder of potato is placed is greater th...
  • Alchemy Middle Ages
    999 words
    Alchemy was alchemy Alchemy Alchemy was a major part of medieval times. Its practitioners' main goals were transmutation and transcendence. Alchemy used the elements of Nature in their experiments. Only later were our elements of today adopted. Alchemists also invented many new methods to use for getting pure forms of the elements. Alchemy is responsible for many of the techniques and methods in use today as well as for the many New Age sciences. Alchemy is one of the more important development...