cases‚ ions from the salt will react with water molecules to produce hydronium ions (H3O+) or hydroxide ions. Any chemical reaction in which water is one of the reactants is called a hydrolysis reaction. Salts are generally formed from the neutralization reaction between an acid and a base. A salt formed from a strong acid and a strong base will not hydrolyze (react with water). When placed in water‚ these salts dissociate completely‚ and their ions remain uncombined in solution. An example
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ACIDS‚ BASES AND SALTS 1. What are indicators? What are the different types of indicators? An indicator is a dye which changes colour when put into an acid or a base. The different kinds of indicators are- Natural indicators- Litmus is a natural indicator‚ litmus solution is a purple dye which is extracted from a plant called lichen. Litmus turns red in acidic solutions and blue in basic solutions. Other
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Synthesis of Isopentyl Acetate Abstract The purpose of this experiment was to produce isopentyl acetate‚ banana oil. Acetic acid and isoamyl alcohol were used to synthesize isopentyl acetate. The techniques used for the separation and purification of isopentyl acetate were reflux‚ liquid-liquid extraction‚ neutralization and distillation. The identification of isopentyl acetate was based on boiling points and an infrared spectrum. This experiment resulted in a 11.68% yield. The reactants
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CALORIMETRY Abstract: During the experiment‚ the group were able to perform the following objectives; to compute the heat capacity of a Styrofoam-cup calorimeter‚ and also to compute the heat of neutralization of 1.0 M hydrochloric acid and 1.0 M sodium hydroxide‚ the heat of dilution of concentrated sulfuric acid‚ and the heat of solution of solid ammonium chloride The sixth experiment was named "Calorimetry" wherein it is the measurement of how much heat is gained or released by a system
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EXPERIMENT NO. 7 Quantitative Analysis of Soda Ash by Double-Indicator Titration ABSTRACT This experiment aims to analyze the percent composition of a substance mixture by using double indicator titration. The analyte used is the soda ash which is titrated with an HCl titrant‚ standardized by 1o Na2CO3. The indicators used are phenolphthalein for basicity and methyl orange for acidity. The two volumes of the titrant are then used to calculate percent composition of soda ash analyte. Statistical
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Analysis of Soda Ash and Carbonate-Bicarbonate Mixture Submitted: February 27‚ 2013 Department of Chemical Engineering‚ Faculty of Engineering University of Santo Tomas España‚ Manila Abstract A standard acid solution like HCl can be used as titrant for the analysis of both soda ash and a carbonate-bicarbonate mixture. In the analysis of soda ash‚ the volume needed to neutralize the soda ash is used to compute for its alkalinity‚ in this experiment we obtained a 17.6 % alkalinity with an error
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For this lab‚ we had to figure out which antacid was the most effective out of all 3 of them. To figure out which one was the most effective‚ the antacid which took the most amount of drops of Hydrochloric Acid (HCl) to neutralize the antacid would be most effective. Based on the results‚ Life Brand Milk of Magnesia was the most effective out of the three antacids because it took 120 drops of hydrochloric acid (HCl) to neutralize the antacid. The active ingredient in Life Brand Milk of Magnesia is
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Comparing Antacids Question: Is a generic antacid as effective as a comparable brand-name antacid at neutralizing hydrochloric acid? Hypothesis: Rexall will be more effective because it has twice the amount of acid in a smaller solution making it stronger than Tums. Procedure: 1) Crush 2 small Rexall’s and put in a flask. 2) Crush 1 Tum and put in a flask. 3) Poor 25ml of warm water in each flask. 4) Let flasks sit for 6 minutes and swish around fluids every 20 seconds. 5) Add 5 drops
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Title: Acid-Base Titration Abstract: Vinegar is a common household item containing acetic acid as well as some other chemicals. This experiment is designed to determine the molar concentration of acetic acid in a sample of vinegar by titrating it with a standard solution of NaOH. CH3COOH(aq) + NaOH(aq) -> CH3COONa(aq) + H2O(l) By adding the sodium hydroxide‚ which is a basic solution‚ to the acetic acid‚ which is an acidic solution‚ a neutralization reaction occurs. An indicator known
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Theories of Crime Javier Bryon AIU Online Abstract There are many theories that attempt to explain criminal behavior. Social theories indicate that interaction with other individuals and environment are factors that contribute to criminal behavior. Many argue that social factors alone cannot be the only cause to criminal behavior‚ but peer pressure and rationalization are powerful tools of behavior modification. Theories of Crime Crime theories can vary greatly. A lot of
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