Sulphuric

experiment, sulphuric acid, H2SO4 and potassium permanganate, KMnO4 is added into glucose with different concentration and the time taken for the purple pink colour of potassium permanganate solution to change to colourless is recorded. This is because glucose donates electrons to the permanganate

need. Glucose is also a type of carbohydrate. It has a chemical formula of C6H12O6 and is a monosaccharide reducing sugar (Kolej Mara Banting – Students’ Handbook for Biology HL Year 1). It is the simplest form of carbohydrate. In this experiment, sulphuric acid, H2SO4 and potassium permanganate, KMnO4 is added into glucose with different concentration and the time taken for the purple pink colour of potassium permanganate solution to change to colourless is recorded. This is because glucose donates

Results Distillation range: 97-102°C Ester has a fruity odor, smells very much like banana. Discussion Results table: Observations Process Observations Reflux When adding 3-methyl-1-butanol, sulphuric acid and ethanoic acid heat were produced by the colourless mixture, which pertained a smell of sulphuric acid. Once heating began, the solution quickly changed to orange and continued to rapidly change to a darker colour. After approximately six minutes, it began to bubble and the colour was now a

Sulphuric acid is a clear, odourless and oily liquid that becomes yellow or dark brown in colour when impure. Sulphuric acid is very toxic and corrosive. According to CCOHS, sulphuric acid will not burn, is fatal if inhaled, incompatible with many common chemicals, reacts violently with water and can cause severe skin burns and eye damage if

tube was poured into an evaporating dish that was half filled with water in order to identify the smell. Observation Table 1: Properties of Solutions and Substances Used Catalyst Alcohol Description Carboxylic Acid Description Ester Description Sulphuric acid Methanol Colourless liquidly solution with a sharp smell. Salicylic Acid White powdery substance Methyl Salicylate Wintergreen scent with a waxy layer on top with the liquid substance below The result of the reaction mainly depends on how

St Joseph’s College Gregory Terrace SCIENCE Production of Hydrogen from Acids Ryan Donaldson Ethan Aridas, Will Roach EXPERIMENT DATE: 17 August 2015 REPORT DUE DATE: 24 August 2015   Table of Contents Contents Table of Contents 2 1.0 Introduction 3 1.1 Background Information 3 1.2 Research Question 3 1.3 Variables 3 1.4 Aim 4 1.5 Hypothesis 4 1.6 Justification of Hypothesis 4 2.0 Methods 5 2.1 Materials 5 2.2 Diagram / Photograph 5 5 2.3 Procedure 5 2.4 Risk Assessment 6 3.0 Results

Acid Rain First discovered Pollution started entering the atmosphere in large amounts during the industrial revolution. In 1872 Robert A. Smith of Air in Manchester, England. Where during the industrial revolution he discovered the relationship between the atmosphere and acid rain. His results showed unusually high acidic levels of hydrogen ions. This is when the term Acid Rain was introduced. It was only later in 1980 when it was recognised on a more of a global scale. The major sources of what

magnesium/magnesium carbonate with sulphuric acid (,which I will be doing in this experiment). The chemical formula for Epsom salts is MgSO4.7H2O. I have also researched information on the two chemicals I will be using in this experiment; sulphuric acid and magnesium. Sulphuric acid is a clear, colourless, oily, and odourless liquid. Its chemical formula is H2 SO4. It is also known as battery acid, and hydrogen sulphate. In the United States more sulphuric acid is produced than

To study the exothermic reaction. Apparatus and Materials : * Dewar flask, stopwatch, thermometer (5 to 50 ˚C, graduated in 1/10 ˚C), * 50 cm3 graduated pipette fitted with a suction bulb, 10 cm3 graduated cylinder, * Conc. sulphuric acid (specific gravity 1.84, 98.5% H2SO4 ), conc. nitric acid, * 1 M

h Chemicals Will React the Most Efficiently for Heat and Eat Packs Aim: To identify which reactions will be the most efficient, in order to heat pre-cooked meals. Theory: It is stated that all chemical reactions involve energy changes. Where a substance is stored with chemical energy and has the potential to be converted to heat (insert cited thing). Exothermic and Endothermic reactions are included in the changes in heat of energy. As Exothermic reactions release heat, and transfer the temperature