Nitric acid Essays

Research Question: How does the concentration of the nitric acid affect the the time for the magnesium to dissolve or react. Hypothesis: If the concentration of the nitric acid is lower, the magnesium strips will dissolve slower and each time the concentration acid is higher the magnesium strip will dissolve faster. The reason for magnesium strips to dissolve faster when the concentration of the nitric acid is higher is because the reaction of this experiment is exothermic and when more energy is

Identification of Unknown Solutions and Ammonium Salts preAice Chemistry Lab Report Descriptions of unknown solutions: Unknown Descriptions A Clear, colorless, odorless liquid. B Clear, colorless, odorless liquid. C Clear, red-brown, odorless liquid D Clear, yellow-orange, odorless liquid. Observations of unknown solutions: Unknown NaOH HNO3 & AgNO3 Diluted HNO3 & BaCl2 HCl A No reaction (+)Yellow ppt. formed Did not test (+)Effervescence (bubbles) B No reaction

reaction will decompose forming two compounds, Copper (II) oxide, and water. Balanced Chemical Equation: Cu(OH)2 (s) + Heat —> CuO (s) + H2O (g) Reaction 4: when a sulphuric acid is added to the solution that contains copper (II) oxide, a double displacement reaction will occur. the copper (II) oxide will react with the sulphuric acid producing copper (II) sulfate and water. The copper and hydrogen gas replace each other. Balanced Chemical Equation: CuO (s) + H2SO4 (aq) —> CuSO4 (aq) + H2O (l) Reaction

the latest progress in studies on ingredients, and pharmacological activities of sarcodestas of Ginkgo biloba has been studied. the main materials in sarcodes tas of G. Biloba consist of flavones, ginkgolides alkylphenols, polysaccharides, and amino acids, and many others. They display the following activities, including bacteriostatic, bactericidal and pesticidal activities, antitumor and mutagenic, carcinogenic effects, antianaphylaxis and allergenic activity, results on immunologic function, scavenging

waters (Environment Canada 2012). Through a dual oxidation process, Nitrate is formed in a reaction of Nitrogen with Ammonium ion producing fertilizer and manure. The oxidation state of a nitrate compound is 1- . Nitrate is the conjugate base of nitric acid (HNO3), a strong

Question 2 - Inosine in AMP catabolism  Introduction Adenosine monophosphate (from now on referred to as AMP) is the lowest energy-containing nucleotide found in living organisms. In its degradation process (Figure 1), several enzymes and intermediates are required, playing important roles that regulate the correct functioning of the overall process. An alteration in any of those participants can cause severe consequences, such as immunosuppression. Inosine is one of those previously mentioned intermediates

Andrew Raposo's 4 Minute Fighter Abs - Our Full Review Hello and welcome to our review of the 4 Minute Fighter Abs program by Andrew Raposo. As always, this review will be divided into 3 main sections: 1. The basics section which will help you to understand what “4 Minute Fighter Abs” is all about. 2. The pros and cons section where you will read about the most important pros and cons of Andrew Raposo’s system. 3. The conclusions section about 4 Minute Fighter Abs that will sum up our thoughts

technique. Acids & Bases Water is the most common acid and base found on earth. An acid is anything that can donate a proton/H+ and a base is anything that can accept a proton/H+ – Bronsted-Lowry. Water being able to both accept and donate a proton/H+ is both an acid and base. H-Cl (aq)+H2O Cl- + H3O+ this equation shows hydrochloric acid in an aqueous solution reacting with water to form chlorine and hydronium. Here water is acting as a base as it accepts a proton from the

reacted with the acid rain the least. The greater the pH change the higher the reaction was. Consequently the material with the lowest pH difference would be the most reliable. Neutralization is when acids and bases change into salt and water. The reason this is important to the lab is if the material is more of a base there will be faster deterioration of the material. Acid rain is rain that is highly acidic due to atmospheric pollution. The pH value of acid rain is 4.0. Results of acid rain can be

presence of ions and sodium has a strong persistent orange color. The compound then will be synthesized with the compounds Na2CO3 and HC2H3O2 to find percent yield. Weighed 1 gram of NaC2H3O2 and mixed it with ionized water. Boiled 12 mL of 1.0M Acetic Acid added into a beaker containing the sodium carbonate on a hot plate until all the liquid is evaporated

of sulphuric acid (H2SO4) in different samples of cyanobacteria and algae of equal volume. My hypothesis is that the lower the pH level of the water, the less the cyanobacteria and algae species will grow. Thus the higher quantities of sulphuric acid in the water will result in the lowest growth rate of the cyanobacteria and algae species. Various chemicals have been released into the air, changing the mixture of gases in our atmosphere, hence resulting in a dramatic increase of acid rain levels

Oral hygiene, concerned from ancient times, various civilizations, with the first form of toothpaste making its appearance in Egypt, in 2000 BC. Consisting of pumice powder and vinegar, this formula although whitened the teeth, caused damage to the enamel. Other variants of toothpaste, created by Greeks and Romans, who observed that the urine, which contain ammonia, component which also exists in modern toothpaste, combined with abrasives, such as crushed bones, shells, charcoal and bark, could freshen

Acid rain is acidic precipitation, and is a serious threat to the environment: for both humans and other organisms alike. It’s caused by an excess of sulfur and nitrogen in the air; emissions of these chemicals can come from natural resources: such as volcanoes and decaying vegetation. Likewise, man-made sources can also affect how much nitrogen and sulfur is being released into the air--sources like the burning of fossil fuels and car exhausts: In the United States alone, over half of sulfur dioxide

Theory: The acid value can be defined as the number of milligrams of potassium hydroxide required to neutralize the free fatty acids present in one gram of fat. It tells about the measure of rancidity as free fatty acids are normally formed by the decomposition of oil glycerides. The acid value is expressed as percent of oleic acid, lauric or palmitic acid. Principle: The determination of acid value is based on the principle of directly titrating the

1. List some sources of acid rain. Acid rain is made by a chemical reaction that starts with sulfur dioxide and nitrogen oxides which is the main cause for the harmful effects of acid rain released in the air. These compounds get into the atmosphere where they get mixed and start to react with oxygen, water and other different chemicals to make acid rain. Sulfur dioxide and nitrogen oxide both can dissolve in water. I personally feel that it is because of humans acid rain is so harmful. Over the

Introduction: This preparation illustatrates the benzoylation of amino acid by Schotten Baumann reaction, the hippuric acid is precipitated upon acidifying the reaction mixture. Reaction: Procedure: Dissolve 2.5g of glycine in 25 ml of 10 % NaOH contained in a conical flask. Add 5.4g (4.5 ml) of benzoyl chloride in two proportions to the solutions. Stopper the flask and shake vigorously after each addition until all the chlorine has reacted. Transfer the solution to a 100 ml beaker and rinse

the others were clear. This made it easy to then match D up to Copper Sulfate because of its color. As unknown A and B were added together, lots of gaseous bubbles formed and revealed the fact that that reaction was the reaction between Hydrochloric Acid and Sodium Carbonate because it was the only reaction that produced a gas release. Unknown A and C produced the only yellow, brown precipitate just as the reaction between Sodium Carbonate and Silver Nitrate had previously. This led to the conclusion

INTRODUCTION Acid rain or also known as acid deposition are divided into two that is wet deposition and dry deposition. Wet deposition is what always be called as acid rain. Acid rain is a term that any form of precipitation with acidic component, such as sulphuric or nitric acid. Example of acid rain form were rain, snow, fog, hail or even dust that is acidic. Acid rain occur when sulphur dioxide (SO2) and nitrogen oxides (NOX) are emitted into the atmosphere and transported by wind and air currents

used to synthesize benzoic acid. The importance of benzoic acid in modern world is due to its uses: the acid and its salts are used as preservatives in food: benzoic acid is globally known as E210 and sodium benzoate as E211. The benzoic acid and its precursors are also used in pharmacy and hygiene products : the shampoo and shower gel that I am using all contain sodium benzoate. With its increasing production I was curious to explore the synthesis methods for benzoic acid and try it in the laboratory

these MOFs was they were made of chromium, which was considered to be toxic to be used as a drug delivery vehicle. So another alternative was suggested, Fe-MIL-100 has been developed as a biocompatible drug carrier104.Trimesic acid (BTC or 1,3,5 benzene-tricarboxylic acid) is the organic linker. This cubic mesoporous iron(III)trimesate MIL-100(Fe)105 exhibit a low toxicity character106 raise exceptional interest as drug delivery and bio imaging systems 107. Apart from Cr and Fe, the MIL-100 contains