molecular form (Cl2) to the hypochlorite ion‚ ClO-. Some of the molecular form is also reduced to the chloride ion‚ Cl-. This type of reaction‚ where the same type of element is both oxidized and reduced‚ is called a disproportionation reaction. The solution remains strongly basic. The net
Premium Chlorine Oxygen Acid
gratitude also goes to my family for their unconditional love and support throughout my life. My friends who have helped directly or indirectly during my student in the university. iii COPYRIGHT © UiTM TABLE OF CONTENTS. Page. iii iv v vi vii viii ix ACKNOWLEDGEMENTS. TABLE OF CONTENTS. LIST OF TABLES. LIST OF FIGURES. LIST OF ABBREVIATIONS ABSTRACT. ABSTRAK. CHAPTER 1 INTRODUCTION. 1.1 Background. 1.2 Significant of study. 1.3 Objectives of study. 1 3 3
Premium Vitamin C Iodine
chlorine is oxidized to the hypochlorite ion‚ ClO- and some is reduced to the chloride ion‚ Cl- (a disproportionation reaction). The solution remains strongly basic. The chemical equation for the process is: Cl2(g) + 2OH- (aq) ---> ClO- (aq) + Cl- (aq) + H2O (l) The amount of hypochlorite ion present in a solution of bleach can be determined by oxidation-reduction titration. One of the best methods is the iodine-thiosulfate titration procedure. Iodide ion‚ I-‚ is easily oxidized by almost any oxidizing
Premium Chlorine
manganate(VII). If a solution of potassium manganate(VII) is placed in a test tube and a light green solution of iron(II) chloride is added to the test tube‚ the purple colour of the manganate(VII) ions disappears. The manganate(VII) oxidises the iron(II) chloride to iron(III) chloride and colourless Mn2+ ions are formed. Potassium manganate(VII) and iron(II) chloride Acidified potassium manganate(VII) is a strong oxidising agent so it can be used to oxidise substances. If a reaction occurs a colour
Premium Oxygen Chlorine Hydrogen
determine the amount of hypochlorite ion present in commercial bleach. Introduction Many commercial products‚ such as bleaches and hair coloring agents‚ contain oxidizing agents. The most common oxidizing agent in bleaches is sodium hypochlorite‚ NaClO (sometimes written NaOCl). Commercial bleaches are made by bubbling chlorine gas into a sodium hydroxide solution. Some of the chlorine is oxidized to the hypochlorite ion‚ ClO-‚ and some is reduced to the chloride ion‚ Cl-. The solution remains strongly
Premium Chlorine Titration Sodium
concentration of aqueous copper(II) sulfate by titration. The concentration of Cu2+ ions in a solution can be found by reaction with an excess of aqueous iodide ions to produce iodine. The amount of iodine formed can be found by titration with thiosulfate ions‚ S2O32–. For Examiner’s Use FB 1 is aqueous copper(II) sulfate‚ CuSO4. FB 2 is 0.100 mol dm–3 sodium thiosulfate‚ Na2S2O3. FB 3 is aqueous potassium iodide‚ KI. starch indicator Read through the instructions carefully before starting
Premium Zinc Solubility Titration
Gerona‚ Evelyn Chemical Reactions Experiment No. 7 Date Performed: Feb. 17‚ 2014 Date Submitted: Feb. 24‚ 2014 Mrs. Vitancol I. Theoretical Framework A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. Classically‚ chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms‚ with no change to the nuclei (no change to the elements present)‚ and can often
Premium Chemical reaction Chemistry Sodium
Questions 1. The charge on an iodide ion is -1. It is determined by the formula for potassium iodide in which neither element has subscripts. This signifies that they have equal amount charges and cancel each other out. The charge of the lead ion is +2‚ as shown on the periodic
Premium Chemistry Chemical reaction Hydrogen
and the importance of the electron in the formation of these new bonds. Materials Boileezers (boiling chips) Desiccant 0.17M acetic acid (acidified water) Solution of Sodium thiosulfate Granular zinc Iodine crystals Zinc ion and iodine-iodide-triiodide ion in water Solid zinc iodide Mineral oil Silver nitrate Magnesium turnings 3M Hydrochloric acid (HCl) solution 2 boiling tubes 1 large tube (we used a small) Pipet Beakers (to hold tubes) Bunsen burner PART 1 Procedure Get a boiling tube and label
Premium Iodine Electric charge Zinc
of substances. The inorganic substances are split-up into two types of charged particles one of which is positively charged and the other is negatively charged. The charged particles are called ions or radicals. The positively charged ions are called cation or basic radical. The negatively charged ion is called anion or acid radical. In the qualitative analysis of an inorganic substance number of tests are carried out in order to discover the acidic and basic radical present in it. A test is
Premium Ion Sulfuric acid Ammonia