Sulfuric acid

By combining the unknown compound with an acid, a base, and two salts, its reactivity was determined. Reacting the unknown compound with sulfuric acid (H2SO4) produced no visible reaction (precipitate), although the pH of the resulting solution was very acidic. Combining the unknown compound with sodium hydroxide (NaOH), a strong base, also had…

Acid rain results in many ecological effects, with the most severe of these affects being its impact on lakes, streams, and aquatic environments in general. It negatively affects marine life, because acid rain makes waters acidic, causing the absorption of Aluminum; which is a combination that threatens some aquatic animals. As the acidity of water increases, the number of fish and marine animals in general decline. Although, there are some species that are able to survive in acidic water,…

amount of oxalic acid in the sample solution. The analyte solution containing oxalic acid was added with sulfuric acid and heated prior to the titration with permanganate. The persistent pink color signaled the end of the titration. The amount of the oxalic acid in the solution was found to be 8.941%. The redox titration was precise in the quantification of oxalic acid with a standard deviation of 1.327%. Introduction One of the natural organic compounds found in plants is the oxalic acid. It…

to as lime water or slaked lime is formed by reacting hydrated lime (calcium oxide, CaO) with water (H2O)[1] CaO (s) + H2O (l) ⇌ Ca(OH)2 (aq) (ΔHr = −63.7 kJ/mol of CaO) Calcium hydroxide is an economically favorable alkaline reagent to neutralize acid as it yields 2 moles of (OH)2 for every 1 mole of Ca(OH)2 (which is slightly soluble in water) when compared to sodium hydroxide [1] and it may separate from the solution ‘constant agitation must be done to prevent the separation since calcium…

Acid rain is a rain that is more acidic (has more hydrogen ions) compared to normal rain and it has serious negative effects to nature and people. It is a mixture of wet and dry depositon that contain high amounts of nitric and sulfuric acids (see Figure 1). These gases come from electric generation, factories, forest fires, burning fossil fuels and acid rain forms when these gases react with water, oxygen and air. Wet deposition happens when acid chemicals fall to the ground in a rain or snow…

solution, because it is the source of the Grignard reagent. Because the halide cannot be eliminated, the next best option is to minimize the amount of halide in the reaction. In this experiment, a small concentration of the halide is reacted with a high concentration of magnesium to ensure maximum contact between halides and magnesium. To do this, magnesium will be placed in the round bottom flask and then halides are slowly added. Another potential source of error is that Grignard reagents must…

idea may be very simple, but requires great efforts because some developed countries have become so dependent on the combustion of hydrocarbons as an energy source. By limiting pollution such as sulfur oxides, nitrogen oxides, and carbon dioxide, acids would not be able to form within the atmosphere to create acidic solutions. The cut-off of air pollution would also solve other environmental problems. The solution seems to be to turn to renewable sources quickly to avoid further ocean…

[mol/dm3] sulphuric acid was added to the flask, and shaken well with the stopper. The name of the members and the date was written on the flask, and was left for a week for the iron sulphate tablets to fully dissolve in the acid. After the tablets have fully dissolved, the whole solution was filtered using a filter paper and a funnel into a 100 [cm2] volumetric flask. The remaining residue in the filter paper was rinsed with a small amount of distilled water. Then, sulphuric acid was added to…

Acid Rain: Pros and Cons Acid Rain. Acid Rain is regular rain fallen from the clouds then made sufficiently acidic by atmospheric pollution. This is created by the process of burning fossil fuels, they contain sulfur and nitrogen oxides, which combine with atmospheric water to form acids. When people hear the words “acid rain” they immediately think about the horrors of it. Few people think about the positive things that acid rain can bring to us. With the evidence given, both sides could be…

Background This experiment was performed to determine the identity of an unknown organic liquid using physical constants: physical state, color, and odor, the solubility classification: water soluble or insoluble, the results of characterization tests: Lucas test, 2,4-Dinitrophenylhydrazine test, Bromine in Methylene Chloride test, and Ferric hydroxamate test, and analyses of spectral data: IR spectrum and HNMR . All testing samples were added to testing tubes for observation. Data was…