ison is strongly basic and a poor leaving group. However‚ alcohols readily undergo nucleophilic substitutions if the hydroxyl group is first activated to produce a better leaving group‚ so reaction is carried out in the presence of a strong acid. The acid protonates the alcohol to create a suitable leaving group‚ water‚ for the SN2 reaction. [IMAGE] Designing... In this experiment 1-butanol will be converted to 1-bromobutane by an SN2 reaction. CH3CH2CH2CH2OH (aq) + HBr (aq)
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hope to determine the percent composition of these two metals. This will be done by reacting the zinc with hydrochloric acid to form zinc ions in a single replacement reaction. The acid reacts with the zinc but not copper. The reaction of zinc metal with the hydrochloric acid (HCl) produces zinc chloride and hydrogen gas. Safety: Wear your safety goggles and apron If you spill Hydrochloric acid on yourself‚ rinse with water Procedure: DAY I 1. Take a post-1983 penny and‚ using a triangular file‚ etch
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EXPERIMENT SIX - ANALYSIS OF STOMACH ANTACID TABLETS Purpose In this experiment you will measure the amount of stomach acid consumed (or neutralized) by various antacid tablets (Maalox‚ Tums‚ Rolaids: no Pepcid or Tagamet!). If you have a favorite one‚ bring a package to the lab (one color only). Inside your stomach‚ excess hydrochloric acid is neutralized by the antacid. Different antacids use different metal hydroxides‚ such as Al(OH)3 or Mg(OH)2. The general formula for this reaction
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the use of an electric water bath. With these results‚ the effect of temperature on the rate of reaction will be investigated. 2. Determine the activation enthalpy with and without the catalyst ammonium molybdate(VI) and with different protic acids and use this to compare the effectiveness. To find out which catalyst is most effective‚ this aim will be carried out as an iodine clock reaction. The goal of this aim is to find out what catalyst is best to make this reaction occur at the
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Procedure Section A: Preparation of 100.0cm3 0.480 mol/dm3 HCl solution a)Determine the volume of the concentrated acid needed. b)Introduce a small amount of the concentrated acid solution into a 50cm3 beaker. c)Add some distilled water into the appropriate volumetric flask from the wash bottle. d)Using a pipette‚ take from the beaker the necessary volume of the concentrated acid and admit it into the volumetric flask. e)Add distilled water to obtain the required volume of the needed solution
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balls b. Substances - hydrochloric acid (HCl) - ammonium hydroxide (NH4OH) B. Testing the Hypothesis Concerning the Rate of Diffusion a. Apparatus - petri dish of agar-water gel with three wells b. Substances - potassium permanganate (KMnO4) - potassium dichromate (K2CR2O7) - methylene blue III. Procedure: A. Formulation of Hypothesis 1. Fasten the glass tube to a ring stand. 2. Simultaneously moisten two cotton balls with hydrochloric acid and ammonium hydroxide.
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formula Type Experimental pH 1 Deidre Acetic Acid 0.1M HC2H3O2 Weak Acid 3.03 3.03 2 Acetic Acid 1M HC2H3O2 Weak Acid 2.59 2.54 3 Hydrochloric Acid 0.5M HClStrong Base 0.85 0.90 4 Jonah Nitric Acid 0.1M HNO3 Strong Acid 2.14 2.14 5 Sodium Acetate 1M NaC2H3O2 Weak Base 9.42 9.42 6 Potassium Dihydrogen Phosphate 0.1M KH2PO4 Weak Acid 5.47 5.47 7 Andy Potassium Hydrogen Phosphate 0.05M K2HPO4 Weak Base 7.71 7.73 8 Ammonium Chloride 0.2M NH4Cl Weak Acid 4.65 4.67 9 Sodium Hydroxide 0.1M NaOHStrong
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50mL of Hydrochloric Acid (HCl). The amount of Zinc was determined to be between 1.00g and 1.25g. As the reaction occurred there was still water left in the beaker. In order to remove the water we heated the beaker to evaporate it. The Zinc Chloride then formed as a solid white substance. * Observations As the Zinc and Hydrochloric Acid reacted‚ bubbling and fizzing occurred. The water became cloudy as the Zinc began to decompose and break apart. The Hydrogen in the Hydrochloric Acid was being
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conventional technique. A study was initiated for the recovery of wax and resin using a baffle tank‚ a reboiling technique‚ then further by adding up of hydrochloric acid (HCL) and acetic acid after first boiling of wastewater. The efficiency of removal was studied using single and combined dyes. Studies on the effect of temperature‚ pH‚ cooling time‚ and acid added were done to determine the optimum efficiency on wax removal of both baffle tank and reboiling technique. From the study‚ it was found that
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1. The use of microscale techniques does not change the hazardous nature of the reagents we use. Briefly describe the hazards associated with even small amounts of each of the following: a. concentrated hydrochloric acid‚ HCl HCL may be corrosive. It can cause burns to dosy tissue and can be deadly if inhaled or swallowed. b. sodium hydroxide‚ NaOH‚ solution NaOH is a very corrosive chemical and contact with it can cause burns to body tissue and
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