menace. Because of pollution in the air‚ acid gases from factories‚ cars and homes‚ the rain is becoming dangerous for the life of every living creature. This rain is known as ’acid rain’. WHAT IS ACID RAIN? Acid gases are produced when fossil fuels like coal and oil are burned in power stations‚ factories and in our own homes. Most of these acid gases are blown into the sky‚ and when
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Preparation and properties of boric acid Result The mass of borax‚ g | 10.0734 | The mass of watch glass‚ g | 36.2842 | The mass of watch glass with product‚ g | 39.9803 | The mass of product‚ borix acid‚ g | 3.6961 | Test | Result | Boric acid is dissolved in water and methyl red indicator is added. | Pink solution is observed | Mannitol is dissolved in water and methyl red indicator is added. | Pink solution is observed | Both solution is added together | The colour of solution
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Acid-Base Titration and Volumetric Analysis The purpose of this experiment is to determine the [NaOH] of a solution by titrating it with standard HCl solution‚ to neutralize a known mass of an unknown acid using the NaOH solution as a standard‚ to determine the moles of NaOH required to neutralize the unknown acid‚ and to calculate the molecular mass of the unknown acid. Procedure: Part A: Standarized 0.10M HCl solution and unknown NaOH solution were poured into two beakers. The burets
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Acid Rain Webquest Name: ________Jacob Rough_________________________ Date: _____3/25/13________ Sulfur dioxide and nitrogen oxides are gases released by the burning of fossil fuels. These gases can react with water and oxygen to form acids. Normally‚ rainwater is slightly acidic. But the additional acid that enters the air when fuels are burned makes it even more acidic. Acid rain can have a harmful effect on fish and other wildlife and upsets the delicate balance
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Introduction to Acids Base chemistry Purpose How to determine the constant equilibrium of an acid‚ Ka? How to evaluate the concentration (M) of an acid? In “part A” experiment‚ we would test the PH of different concentration of acetic acid (a weak acid which partially dissociated in water) with a PH probe. After we got the PH‚ we could find out the concentration of H+ by applying the relationship pH = -log [H+]. Having the determined value of [H+] of a weak acid with a known molar concentration
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considered that rain is acid? = The pH scale measures how acidic an object is‚ when pH is lower than 7 rain is considered acid. b) Which are the compounds that in contact with water origin acid rain? = Compounds like sulfur sulphuric and nitric acids. c) Which are the principal causes of these compounds? = The extra acidity in rain comes from the reaction of primary air pollutants‚ primarily sulphur oxides and nitrogen oxides‚ with water in the air to form strong acids. The main sources of
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Acid Reflux or Gastroesophageal Reflux Disease (GERD) is caused by stomach acid rise towards the esophagus and cause pain in the solar plexus or a burning sensation in the chest. The cause of acid reflux (GERD) is the proper functioning of the lower esophageal sphincter (LES). LES is a circle of muscle at the bottom of the esophagus. LES serves as the automatic door opens when food or drink down to the stomach. After the food came in‚ the LES will be shut down to prevent the existing food and acid
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What is acetylsalicylic acid? Acetylsalicylic acid (ASA)‚ or more commonly known as aspirin‚ is a medication that can be used for pain‚ fevers‚ and inflammation. It can be used for long periods of time‚ in small amounts‚ to prevent heart attacks‚ strokes and the formation of blood clots. A heart attack victim can be given a low dose right after the ordeal to reduce the risk of another one. Side effects of this drug is ulcers‚ internal bleeding (stomach) and ringing in the ears. These mainly happen
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Tacula‚ Jassy Camille D.S. Activity 11 Acids and Bases I. Objectives * To identify some acids and some bases which are used in common household products. * To construct an operational definition of an acid and a base‚ using the characteristic properties of those substances. II. Procedure A. For acids * Place 2ml each of dilute acetic acid‚ hydrochloric acid‚ sulfuric acid‚ carbonated drink (colorless) and calamansi juice extract in
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Rubberneck‚ courageous‚ and foolishness‚ as in the story “A&P‚” by John Updike (1961). It narrates three young females jostling into the store with inappropriate garments on that were highly restricted to the stores demands as for a man on aisle three who caught a glimpse at the three young broads who walked into the store. One with a plaid green two-piece‚ the next women had on a dirty pink two-piece and the last girl had an orange two-piece. None of them have seemed to be wearing any shoes and
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