Dana Erika Domingo III – St. Anne STERILIZATION OF WATER USING BLEACHING POWDER A CHEMISTRY INVESTIGATORY PROjECT ANSHUL KUMAR PANDEY XII B [THIS PROJECT LOOKS AT THE TECHNIQUE CALLED STERILIZATION OF WATER USING BLEACHING POWDER WHICH IS USED TO PURIFY WATER AND MAKES IT FIT FOR DRINKING.] INDEX I. Introduction -Need of Water -Purification of Water -Need for a stable purification technique II. Theory -History of Water purification -Bleaching powder
Premium Chlorine Water purification Drinking water
react • The ability to oxidise decreases down Group 7 • This can be shown by halogen displacement reactions where elements higher up the group will displace elements further down the group • This can be done with chlorine dissolved in water or by bubbling chlorine gas through NaBr(aq) or NaI(aq) Cl2 + 2NaBr ( 2NaCl + Br2 Pale green solution Yellow solution/orange in hexane Cl2 + 2NaI ( 2NaCl + I2 Pale green solution Brown solution/purple
Premium Sodium hydroxide Chlorine Hydrogen
Pakistan Paper : Pakistan Paper Products Ltd came into existence in 1951. At that time our newly founded country had to import all its paper products which was resulting in the drain of valuable foreign Exchange. Realizing the need of times‚ Mr. Hashim B. Sayeed armed with machinery and technical know how from Germany decided to set up a paper converting unit in Pakistan. In 1962 Pakistan Paper Products became a Private Limited company and then in 1964 it became a Public limited company and was
Premium Paper Chlorine
Chemistry F332 Notes Ions in solids and solutions: Structure of an ionic lattice (Sodium Chloride): * Consists of sodium ions (Na+) surrounded by six chloride ions (Cl-) * Chloride ions also surrounded by six sodium ions. * Held together by attraction of oppositely charged ions. * Giant ionic lattice. * Electrostatic bonds hold lattices together. * Structure is simple cubic. * Some ionic crystals contain water. * Known as water of crystallisation. * These crystals
Premium Chlorine Sodium chloride Ion
1: The reaction between chlorine and iron(II) ions Chlorine gas oxidises iron(II) ions to iron(III) ions. In the process‚ the chlorine is reduced to chloride ions. You would have to know this‚ or be told it by an examiner. In building equations‚ there is quite a lot that you can work out as you go along‚ but you have to have somewhere to start from! You start by writing down what you know for each of the half-reactions. In the chlorine case‚ you know that chlorine (as molecules) turns into
Premium Hydrogen Hydrogen peroxide Electrochemistry
ferons) are stable non-corrosive and inert compounds containing chlorine‚ fluorine and carbons. They are extensively used as the coolants in refrigerators‚ air conditioners and as propellants in aerosol cans and in plastic forms. These CFC molecules‚ once they escape into the atmosphere‚ migrate to the stratosphere and decompose to release chlorine atoms in the ozone layer. CCL2F2 CCLF2 + Cl---------- (i) Then the chlorine atom attacks the ozone moleculs Cl + O3 ClO + O2-------------(ii)
Premium Ozone depletion Chlorine Ozone
Fireworks! Have you ever been to an aerial fireworks show at an amusement park‚ baseball game‚ Fourth of July celebration‚ or on New Year’s Eve and wondered about how all the impressive colors and sounds are produced? People everywhere enjoy the fantastic explosions and the brilliant light displays of fireworks. However‚ these spectacles are much more than just a form of entertainment. Each firework launched into the sky is a precisely formed assembly of chemicals and fuel‚ carefully calibrated
Premium Oxygen Chlorine Fireworks
Cfcs Cause Deterioration of the Ozone Layer The deterioration of the ozone layer ‚ caused by Cfcs‚ endangers the lives of humans ’. Cfcs have a diminishing effect on the ozone layer. Furthermore‚ the deterioration of the ozone cause an increase of Ultraviolet (UV) radiation which can have a negative effect on human skin and eyes. As a writer for newsweek‚ I have investigated the scenario and found the following information. The earth ’s atmosphere is a blanket of air that surrounds the planet
Premium Ozone depletion Oxygen Ozone
Sometimes you will have a high level of salt or not enough chlorine. In order to maintain a safe swimming pool you need to be sure that everything is working as it should be. If you find that you are frequently running into problems one easy solution could be to monitor it more closely. If you spend an hour per week
Premium Chlorine Swimming pool
FORM 4G ELECTROLYSIS WORKSHEET TERM 3 2010-2011 1.Figure 1 below is a diagram of the apparatus used in the electrolysis of fused sodium bromide. Figure 1 a)Write the formulae for the ions present in the fused sodium bromide. b)Write an ionic equation to represent the reaction taking place at the positive and negative electrodes. c)When the heat source was removed‚ the crucible cooled and the lamp went out. Explain why the lamp went out when the crucible cooled. d)At the end of the experiment
Premium Electrochemistry Sodium chloride Chlorine