barium and calcium chloride‚ then the highest concentration of calcium chloride would affect them the most because of the production of hydrochloric acid and calcium oxide from the mixing of water and calcium chloride‚ two very dangerous acids‚ with the highest concentration having the biggest chemical reaction. Within five minutes of putting the Daphnia into the 10 (ppt) solution of calcium chloride‚ one or more of the Daphnia died. The Daphnia in the 1 (ppt) solution of calcium chloride died before the
Premium Water Concentration Acetylcholine
Introduction Molecules are constantly in motion due to thermal energy. Therefore‚ the molecules will move around and bump into each other. Because of this‚ molecules tend to spread out evenly into available space in a process called diffusion. Diffusion is the random process of molecules moving from areas of high concentration to low concentration‚ thus requiring no energy. Many of the substances that enter or leave the cell do so through diffusion. Osmosis‚ a type of diffusion‚ is the movement
Premium Osmosis Concentration
To investigate the results of the different amounts of sodium bicarbonate (2g‚4‚8g)‚when put in the baking process to produce cupcakes‚obtained by the change of height of a cupcake measured by a ruler‚when baked at 180 degrees celsius for 20 minutes when measured with a ruler. Research question: What will be the result of adding different amounts sodium bicarbonate (2g‚4g‚8g) in a standard (vanilla) cupcake ‚when they are baked at 180 degrees celsius over a period of 20 minutes using an oven thermometer
Premium Chemistry Carbon dioxide Sodium
Title: Prep of t-Butyl Chloride via SN1 Reaction Purpose: The purpose of this experiment is to synthesize tert-butyl chloride via an SN1 reaction. t-Butyl Chloride was synthesized from t-Butyl Alcohol using hydrochloric acid in separatory funnel; isolation of t-Butyl Chloride was done under distillation conditions. The experiment resulted in 8.29grams of purified compound‚ which is a 66.27 percent yield. Procedure: As per handout with changes Equation: Mechanism: Results: (Scan
Premium Solvent Alcohol Distillation
Is it worth it? Does it matter? and Why does it matter? Of course these are questions that fall under the category of “The Meaning of Life‚” and are virtually impossible to reply to‚ but everyone should be entitled to possess their own educated opinion‚ right? In Thomas Nagel’s essay “The Absurd” he raises some interesting‚ but conflicting arguments toward life’s “absurdity”. In his very complicated essay of rationalizations‚ he basically presents us with the 3 main reasons why life could be considered
Premium Meaning of life Human Life
UNIVERSITY ENTRANCE EXAMINATION PHYSICS Duration : 2 hours Please read the following instructions carefully. 1. This paper is made up of 50 Multiple-Choice questions and comprises ELEVEN (11) printed pages. 2. Do not write on the question paper. 3. Answer all questions and indicate your answers on the answer sheet provided. Marks will not be deducted for wrong answers. 4. Do not take any paper‚ including the question paper or unused answer sheets‚ out of the examination
Premium Force Speed Voltage
effect of concentration of thiosulphate on the rate of reaction between sodium thiosulphate and hydrochloric acid. Introduction: Word Equation for the reaction: Balanced Symbol Equation for the reaction: Observations during the reaction: • A yellow precipitate of Sulphur starts to form and the reaction mixture goes cloudy. • A colourless‚ poisonous gas of sulphur dioxide is given off. • Sodium Chloride (salt) and Water also form. The salt dissolves in the solution‚ and the
Premium Chemical reaction
Formosa Plastics Vinyl Chloride Explosion Formosa Plastics USA Illiopolis‚ IL April 23‚ 2004 TABLE OF CONTENTS 1.0 EXECUTIVE SUMMARY 2 2.0 DISCUSSION 2 3.0 RECOMMENDATIONS
Premium Polyvinyl chloride
the Rate of Reaction Between HCl and Sodium Thiosulfate Chemistry Lab report Aim: The aim of this experiment is to determine how concentrations of HCl acid affect the rate of reaction when reacted with Sodium Thiosulfate (Na2S2O3). This experiment would require measuring the mass of the reaction over a period of time to be able to determine the rate of the reaction. Safety Precautions: In this experiment‚ SO2 gas is produced from the reaction between Sodium Thiosulfate and HCl‚ and this can be dangerous
Premium Chemical reaction Chemistry
with a current or prior history of Clostridium Difficile infection on a case-by-case basis. Also‚ nurses must be careful to sanitize equipment that is shared between patients‚ and partner with environmental services to successfully clean areas of potential contamination. Typically‚ regular active cleansing ingredients in hospital disinfectants are quaternary ammonium compounds and do not kill spores. The Centers for Disease Control currently recommends using hypochlorite-based germicides‚ such as bleach-based
Premium Health care Health care provider Medicine