Hydrochloric acid

Submission Separation (Liquid-Liquid Extraction) Lab Summary The aim of this lab was to separate a mixture of aniline, benzoic acid, and 1,4-dimethoxybenzene by the method of extraction. In this experiment, 7 ml of the mixture was used instead of 10 ml. A portion of this mixture was transferred to another flask to facilitate cooling. Afterwards, 3.5 ml of 12 M hydrochloric acid was added gradually to the mixture. A sample was obtained at a melting point of 1250C, and another at 750C. A sample of…

Difference and Similarities of Lantus and Levemir Lantus and Levemir are the type of long-acting insulin which is injectable and used in the treatment of diabetes. They can be used by both children and adults. Human insulin is made up of amino acid chains, A and B. Insulin is produced naturally in the body by the pancreas. It converts tissues in the bloodstream into energy which we use daily. With no insulin in the torso, the sugar levels will become dangerously high and out of balance. Hence,…

Introduction: Nitrous acid (HNO2) is used as a source of nitrosonium ion (N≡O+). The nitrosonium ion by reacting with an aromatic amine converted into a diazonium salt. As diazonium ion is a weak electrophile, it reacts with electron-rich, aromatic coupling agents to produce an azo dye. The products are mainly ortho and para due to the reaction being an electrophilic aromatic substitution Reaction: p-nitroaniline p-nitro benzenediazonium chloride Para-red…

The formation of benzilic acid results from the reaction of benzil with ethanol and potassium benzilate. In order to produce benzil, benzoin was reacted with nitric acid. A crude product of benzil was produced from the reaction of benzoin and nitric acid. Through the process of multi-step synthesis, benzil was produced through the oxidation of an alpha-hydroxyketone to an alpha-diketone using nitric acid. Prior to the reaction of nitric acid and benzoin, nitric acid was protonated to form an…

relates to gastric acid secretion. The cycle of this negative feedback mechanism starts when food entering the stomach triggers the release of gastrin from the cells of the stomach wall. Gastrin tells the stomach glands to secrete the elements of hydrochloric acid, thus increasing the pH of the environment to 1.5. Once an optimal pH of 1.5 is reached, the cycle reverses. The acid stops the release of gastrin, which in turn tells the glands to stop secreting hydrochloric acid. (Whitney &…

separated by parts. First, a filter paper was used to separate the salt and water from the chalk and sand. is the filtration process, a separation technique using a filter paper to separate solid particles in a liquid. Second, acid dissolution, using HCl (Hydrochloric acid) that will react with calcium carbonate to produce CO2 , thus creating a chemical reaction. Afterwhich, evaporation was used to separate the table salt from the water. Specifically, this technique entails the changing of the…

The substance was stirred until dissolved. The liquid solution produced a blue color as soon as the cupric sulfate dissolved. Prior to this 1.127 grams of Zinc was gathered along with Hydrochloric acid. Both the Zinc and Hydrochloric acid were poured in gradually creating a reaction. A stirring rod was used to stir this while the reaction occurred. Figure 2 shows the reaction in action. Before long less Zinc became visible at the bottom of the beaker. Copper…

of determining an unknown acid or base, anion and cation test were performed. These tests allowed for the components of the solutions to be identified, therefore, achieve the second goal. The pH was also used in to help find the identity of the unknown solutions and it was used to draw conclusions about the solutions. Dilutions were used to help understand the different behaviors of different concentrations. Household items were used to help apply basic theories about acids and bases such as pH.…

Was More Copper Created? Harshal Patel* and Isaac Cenoz Chem 111-491 Introduction: Copper is one of the most important and diverse elements found in nature all over the world because it can be chemically reacted with many other elements and compounds. The purpose of this experiment was to identify the different reactions that occurred through the lab and the different types of reactions. Throughout the lab, copper was put through series of reactions to see the different combinations and how its…

Increased ocean acidification isn’t the only thing affecting the ocean, but it is very problematic because it erodes aragonite which is a mineral of calcium carbonate. In other words it kills corals and causes the hard exoskeleton to erode. Action needs to be taken to ensure the survival of corals and the creatures that rely on coral reefs to survive. Coral reefs are sources of food for millions of people, but also are sources of medicines. As coral reefs disappear so do the organisms that are…