Sodium chloride

Introduction Density measures the volume that a given amount of mass takes up. Usually, density has grams per unit volume as a unit. To find the density of an object, the object has to be measured and its mass has to be divided by its volume. Often times, density is used to identify substances, since different elements have specific densities. This experiment is made up of two sections; the first section measures the density of water and the density of an unknown substance. If the procedure is…

In the foregoing paper, the author reported that ethyl ester of highly unsaturated fatty acid freshly obtained from cuttle fish oil showed quite the same good nutritive effect as oleic acid ester for rat, while the acid exposed to air was proved to be extremely toxic. Since it seems to be most plausible that the toxicity is concerned with the formation of peroxide by autoxidation of unsaturated fatty acid, the author determined the amount of peroxide. The result proved. this was just the case,…

After we gathered our materials we measured 23 g of sodium nitrate and 200 mL of water. After measuring the water we put the water in the small bag. Then we took the initial temperature of the water, which was 23 degree celsius. Then, we put the 23g of sodium nitrate into the big bag. After that we put the small bag(unsealed) into the big bag(sealed). Then, we mixed the two substances together. Once we…

acquisitions, international expansion and strategic alliances or partnerships with other firms. They reshaped company through acquisitions and had an annual organic growth rate of 3–4%. Church & Dwight pushed aggressively into consumer products outside of sodium bicarbonate-related products and into the international arena even in the early 2000s, and numerous changes were made in key personnel. They undergone a substantial transformation in the past decade largely as a result of three major…

In this lab there was 2 objectives which where to recognize when a chemical reaction has occurred and practice collecting detailed observations in the laboratory using proper scientific terms. Reaction set #1 (1a) place approximately 1 ml of 0.1 M Pb (No3)2 solution into a test tube. Then sequentially add drops of 0.25M k2CRO4 solution until you see evidence of a chemical reaction. The products of this reaction are aqueous KNO3 and solid PbCrO4. (1b) place approximately I ml of .1M Pb (NO3)2…

was advertised in comics in the newspaper in 1931. In 2006, the brang celebrated its 75th anniversary. Alka-Seltzer itself is made up of three main ingredients: Aspirin, citric acid, and sodium bicarbonate (baking soda). When sodium bicarbonate (baking soda) dissolves in water, it splits up and leaves sodium and bicarbonate. The bicarbonate reacts with hydrogen from the citric acid to form carbon dioxide and water. This is what you see when you drop a tablet into a glass of water; it…

Acid-base chemistry can be used to separate the components of a mixture, if one or more of those components are acidic or basic, based on the solubility of that mixture. Solubility is the ability of a solute to dissolve in a solvent and it’ll usually form a solution. An extraction is when compounds are dissolved from a solid into a solvent or from a solution into another solvent. Solvent-solvent is when nonaqueous solvents and reagents are used to remove an element from an aqueous solution. The…

I. INTRODUCTION Did you know that yeast is the only substance that is asleep until you mix it with something in order to activate it? Well, many people may say, “No.” Well if we thought about it, what activates bread to rise? From experience as a young family baker, when yeast is added to the bread, you need to mix warm water and sugar. These ingredients once mixed together, create a reaction with each other because sugar is the key that helps expel the carbon dioxide that's needed. The purpose…

Smoothie Separation Lab Report 1) Our final smoothie product was not separated. We accomplished this by the addition of the Milk Juice smoothie stabilizer at around 3/4 of a teaspoon. We added that to about 2/3 of a cup of water that we were heating up on the stove and stirred until the stabilizer dissolved. Once it dissolved we removed the pot from the stove and put into the freezer to cool. While the water mixture was cooling, we made a simple syrup. Our simple syrup was made with roughly…

The “Acid Bath Murderer” case was about a man named John George Haigh. It was said that he killed his boss and dumped him into a forty-gallon barrel of acid (Casale,2017). Like most known killers, Haigh blended well into society. Born into a strictly religious family on July 24, 1909, Haigh claimed his childhood to be strict and somewhat lonely. During his youth, Haigh had an accident which resulted in having a blue bruise on his head. His mother told him that this blemish was a result of his…