Sodium hypochlorite

3.7. Equilibrium isotherms Langmuir isotherm proposed by Langmuir, (1918) with some limitations Dąbrowski, (2001) expressed as: (4) Where qm (mg g–1) is the maximum amount of the metal ion per unit weight of adsorbent, ‘qe’ is equilibrium adsorption capacity (mg g–1), ‘Ce’ is the equilibrium concentration of the adsorbate (mg L–1), and b is a constant which reveals the affinity of binding sites (L mg-1). From the plots between (Ce/qe ) and Ce the slope (1/qm ) and the intercept…

Lab 14/ Test 6: Determination of Acid Dissociation Constants through Titration Sabrina Tom I.Abstract The two unknown solutions A and E were titrated with NaOH solutions. For each solution, one fast and three slow titrations were done to see where the pH rose exponentially. The unknown solutions A and E were determined to be Pyridinium ion acid and oxalic acid, respectively. II.Theories One significant concept throughout this lab is titrations. A titration is a lab method analyzes a…

help with measuring the time (dependent variable). 3. A thermometer was placed on the table to measure the room temperature. 4. 0.15mol/L sodium thiosulphate solution (Na2S2O3) and 3mol/L hydrochloric acid (HCL) were poured into two separate 50 ml beakers, and the two beakers were transported to the experimental table for convenience. 5. 25 ml of 0.15mol/L sodium thiosulphate solution were measured in a 25 ml measuring cylinder. Pipette was used to transfer the solution from beaker to the…

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…