Sodium citrate

Mustard oil is a fatty vegetable oil which is obtained from mustard seeds. There are basically three varieties of mustard oil available. The difference between these three varieties lies in the method of extraction, chemical composition and properties. The fatty vegetable mustard oil is extracted by pressing mustard seeds. Mustard oil is obtained by cold compression of the mustard seeds and by infusing this extracted oil with other oils to get the final product. Essential mustard oil is obtained…

I. Abstract The experiment was about using a method of recrystallization to reform benzoic acid and unknown compound, and identifying that compound. The main principle is the polarity and solubility of compound. The compound was dissolved completely with distilled water in hot temperature and reformed back in cold environment. After the experiment, there were up to more than 50% of the compound being recrystallized and the unknown compound had the melting point at 165.2oC. The experiment…

Oxalic acid and Sodium hydroxide: C_2 H_4 O_4+2NaOH →〖Na〗_2 CO_4+2H_2 O (The ratio between Oxalic acid and Sodium Hydroxide is in the ratio 1:2) For carrying out titration take 25ml NaOH in a conical flask using a pipette and fill up the burette with 0.1molar Oxalic acid. Add 4-5 drops of colorless phenolphthalein in the flask containing NaOH. Note the titer value for 5 five trials and take the average titer value into consideration. Perform titration between Oxalic acid and Sodium…

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…