Acid Essays

  • Acid Acid Rain

    998 Words  | 4 Pages

    ACID DEPOSITION AND ACID RAIN: Acid deposition is caused by acidic particles and gases that deposit or fall to the Earth. Acid deposition can be wet or dry. Wet deposition is deposition of acidic gases such as oxides of sulfur and nitrogen and acidic particles brought down as precipitation by rain, fog and snow. Dry deposition is dry deposition of acidic gases in the absence of rain or precipitation. Acidity is measured using a scale called the pH scale. This scale goes from 0 to 14. 0 is the most

  • Acid Phosphatase Lab

    1870 Words  | 8 Pages

    Acid phosphatase is an enzyme commonly found in nature in plants, animals, and protists. Acid phosphatase is found in human bone and prostate tissue. The optimal conditions of acid phosphatase were tested using Michaelis-Menten kinetics to determine the ideal substrate concentration, varied pHs were tested in order to determine the optimal pH, and various temperatures were tested in order to determine the optimal temperature. Using Michaelis-Menten kinetics, the Vmax was determined to be 312.5 nmol/min/mg

  • Acid Rain: The Cause And Effects Of Acid Rain

    991 Words  | 4 Pages

    The increase of acid rain is increasingly proving to be a very distressing global issue. Acid rain defines any type of precipitation with excessive quantities of nitric and sulfuric acids. The formation of acid rain can be expressed by the equations: H2O(l) + SO2(g) ==> H2SO3(g) and 2NO2(g) + H2O(l) ==> HNO3(aq) + HNO2(g). It can appear in the form of fog, snow, and tiny bits of dry substance that settle on Earth. The biggest cause of acid rain is the burning and combustion of fossil fuels by factories

  • Role Of Hydrochloric Acid In Food

    1301 Words  | 6 Pages

    role of stomach acid Chapter 14 section 1 Noopur Rajendra Grade – 11AA 25/04/2016 Ms. Sara Kassem Sharjah American International School Discuss the role of hydrochloric acid in the digestion of foods. Point out how excess acid contributes to the discomfort known as indigestion. Explain how the stomach secretes a mucous layer, which protects it from being damaged by the hydrochloric acid it produces. Abstract Hydrochloric acid, which is also called HCl, is a highly corrosive acid. It is a strong

  • Phosphoric Acid And Acetylsalicylic Acid Lab Report

    2007 Words  | 9 Pages

    Results and Discussion One of the objectives of this exercise is to synthesize acetylsalicylic acid (aspirin) from salicylic acid. The mechanism for this synthesis is through nucleophilic acyl substitution. Acetic anhydride was the acetylation reagent used with the salicylic acid. The mechanisms and the reaction involved in the synthesis are seen in the following figure. 1.00 gram of fine white salicylic acid powder was weighed in a clean, dry 125mL Erlenmeyer flask. 3mL of strong smelling, clear colorless

  • Titration Of Hydrochloric Acid

    1111 Words  | 5 Pages

    the hydrochloric acid (HCl) solution by reacting (titrating) it with the standard base sodium hydroxide (NaOH) solution. Titration is the name of the analytical process that is used to determine the concentration of an unknown solution by reacting it with a standard solution (known concentration). The known concentration solution is called the titrant, and the unknown concentration solution is called the analyte. The purpose of using HCl and NaOH is because they are strong acid and base, which means

  • Ethical Effects Of Acid Rain

    884 Words  | 4 Pages

    of Environment, Acid rain is affecting many things in our world. Architecture, animals, the ecosystem and even us as humans. Acid rain is one of the many things in this world that is caused by a chemical reaction. Acid rain begins when both sulfur dioxide and nitrogen oxides (which are both compounds) are released into the air. They can reach up to the atmosphere. There they mix and react with oxygen,water and other chemicals to form acidic pollutants, which is also known as acid rain. These two

  • Acid Rain: Factors And Consequences Of Acid Rain

    809 Words  | 4 Pages

    to 5.6. Acid rain refers to rainfall with pH < 5.0. Oxides of sulfur are emitted into the atmosphere as a result of combustion of fossil fuels, petroleum refining, copper smelting and cement manufacture. About 80 % of oxides of sulfur come from burning of fossil fuels. Sulfur dioxide (SO2), through series of chemical reactions gets converted into SO3. This trioxide form of sulfur on reaction with water produces sulfuric acid (H2SO4) and this is the principal component (60-70 %) of the acid rain. The

  • The Causes Of Acid Rain

    1060 Words  | 5 Pages

    Abstract The acid rain is not only rain which has pH lower than 7, but also have lots of other forms. The reason to form an acid rain is complex, the main matter result in the acid rain which is sulfuric acid and nitric acid, both of them were produced more by human’s activities. Acid rain will result in many hazards such as freshwater acidification and soil desertification. Accroding to analysis the big data of Google, scientist need pay more attention to propagate what acid rain is. Keywords:

  • Carboxylic Acid Reaction

    1345 Words  | 6 Pages

    of Carboxylic Acids Main Contributor: Chen Swee Lun Carboxylic acids consists of a huge and diverse group of organic compounds that contain the carboxyl group (-COOH). The general formulae for carboxylic acid is CnH2n+1COOH. The presence of hydrogen atom in the carboxyl group gives carboxylic acids an acidic property when the acid is dissolved in water. Methanoic acid, ethanoic acid and propanoic acid are some examples of carboxylic acids. Formic acid, acetic acid and propionic acid are the common

  • The Dangers Of Acid Rain

    781 Words  | 4 Pages

    Acid Rain is a form of precipitation that has high levels of hydrogen ions, and minimum ph. Acid rain can be harmful to plants and animals. The terrible chemicals in acid rain is sulfur dioxide and nitrogen oxide, which happens when molecules of water in the atmosphere to make acids. The chemicals in acid rain can peel paint from cars and cause corrosion. acid rain is incredibly power and terrible for our eco system. Pollution from our world is the cause from all acid rain. Three things acid rains

  • Acid Rain Chemistry

    1269 Words  | 6 Pages

    SUMMARY Acid rain is defined as any form precipitation that has abnormal acidic content. This phenomenon was first discovered in 1872 but didn’t gain popularity till 1980, when unchecked car, and industrial emission got worldwide interest. Acid rain is caused by natural and manmade emissions. The main culprits of acid rain are Sulfur and nitrogen oxides. When these gasses react with the water vapour (clouds) in the atmosphere, they form weak acids. The clouds carrying the acidic water may

  • Lab Report Oxalic Acid

    1600 Words  | 7 Pages

    The oxalic acid is an organic compound with the formula C₂H₂O₄. It is a colorless crystalline solid that forms a colorless solution in water. The condensed formula is HOOCCOOH, reflecting its classification as the simplest dicarboxylic acid. Reaction: Procedure: In a 500 ml flat bottom flask , take 15g of cane sugar( sucrose) and keep the flask in a fume cupboard. Add 75 Ml Conc.HNO3 and heat the flask on a boiling water bath. On heating the flask sugar dissolves in nitric acid and copious

  • Benzoic Acid Lab Report

    767 Words  | 4 Pages

    Abstract The unknown concentration of benzoic acid used when titrated with standardized 0.1031M NaOH and the solubility was calculated at two different temperatures (20◦C and 30◦C). With the aid of the Van’t Hoff equation, the enthalpy of solution of benzoic acid at those temperatures was determined as 10.82 KJ. This compares well with the value of 10.27KJ found in the literature. Introduction Solubility is a chemical property that is measured in terms of the maximum amount of solute dissolved in

  • Acid Rain Solution

    701 Words  | 3 Pages

    The term "Acid Rain" is a broad term that is used to emphasize on the fact that the rain has become acidic using certain pollutants, which may appear in different forms. For example, the dry deposition is when gases and dust particles become acidic, being able to affect a person 's health by inhaling it. On the other side, wet deposition is when it rains, polluting the trees and lakes. Acid rain is a result of two different sources; first is natural sources, such as decaying vegetation and volcanoes

  • Phenol Sulfuric Acid Analysis

    740 Words  | 3 Pages

    The results of the phenol-sulfuric acid analysis conducted in this experiment suggest that the data acquired was relatively precise but inaccurate with respect to the given carbohydrate concentrations of the soda and Gatorade samples. Using a standard curve generated from a glucose solution with a known concentration, the carbohydrate concentration of the samples was determined (in terms of glucose) and a low coefficient of variation was calculated. However, a high percent relative error was apparent

  • Hydrochloric Acid Titration

    731 Words  | 3 Pages

    calculated by determining the volume of a solution with known concentration needed, titrant, to completely react with the analyte. In this case the hydrochloric acid solution (HCl) is the analyte since its concentration is unknown and it is titrated with sodium hydroxide (NaOH) which serves as a titrant since its concentration is known. This is as an acid-base titration and in it the hydrogen ions from the HCl react with hydroxide ions from the NaOH to produce water. From the equation of the reaction it can

  • The Effects Of Acid Rain

    1701 Words  | 7 Pages

    Acid rain is a term that refers to a mixture of wet and dry deposited material that contains higher amounts of sulfuric and nitric acids. Acid rain can be caused by natural phenomenon such as the ash from a volcanic eruption or decaying vegetation. Acid rain can also be human made from the combustion of fossil fuels that releases sulfur dioxide and nitrogen oxide. Acid rain transpires once these gases react within the atmosphere with oxygen, water, and other chemicals to create different acidic compounds

  • End Point In Acid-Base Titration

    845 Words  | 4 Pages

    Discussion: End point in this acid-base titration experiment refers to the point where the chemical reaction has reached its conclusion and no additional titrant should be added. The end point of this experiment can be obtained when the indicator used changes colour. For example colourless to light pink when phenolphthalein is used and red to orange and subsequently yellow when methyl orange is used. Equivalence point, also known as stoichiometric point in an acid-base titration refers to the point

  • Kojic Acid Lab Report

    979 Words  | 4 Pages

    Properties of Kojic acid Kojic acid has a Chemical formula of C6H6O4, with a molar mass of 142.11 g/ mol, appears as white prismatic or needle shaped structure,with a melting point of 152 to 155 °C and a density of 1.580 mg/cm3 . It is weakly acidic in nature with a pKa value of 9.40. 4.5.3.1 Chemical properties Kojic acid is soluble in polar substances like water, ethanol, ethyl acetate etc. On the contrary, kojic acid is very less soluble in chloroform, ether etc . It has multifunctional reactive