Volumetric flask

colour change of the end point, it can determine: The moles of KMNO4 in the average titre, the amount of moles needed of Fe(II) to complete the reaction in 25cm3, using the Balanced equation for the reaction, from this the amount of Fe (II) in volumetric flask. Using these values the weight of Fe (II) can be calculated and then the % weight, respectively. Experimental Procedure Part…

with water and NaOH, and followed by filling with NaOH solution made in the first week of lab. An acid of unknown concentration was prepared by the instructor and given for analysis. 25.00 mL of the acid was transferred into an Erlenmeyer flask using a volumetric pipette and 2-3 drops of phenolphthalein were added. The resulting solution was titrated with NaOH to achieve the faint pink endpoint and [unknown] was calculated according to the volume of NaOH used. The purpose of this experiment was…

Phosphate can be harmful when excessive amount is present in the drinking water system. The U.S. Public Health Service has set the maximum value of phosphate in drinking water at 3.0 mg/L. In this experiment, several samples were diluted and its concentration were analyzed through a spectrophotometer. The results obtained (0.1 mg/L and 2.28mg/L) are within the U.S. Public Health Service’s standards and are deemed to be safe. Introduction It is important that drinking water is monitored regularly…

orange are added to the solution. Detailed data is collected by adding small volume of acid titrant and recording the corresponding to the two equivalence points. Task 3 Alkalinity of natural water. 10 mL of 0.1M NaCl solution is added in a100 mL volumetric flask using natural water as diluent. Tree replicate of 50 ml of this sample is transferred into a beaker, and the same steps used to standardization are followed for each sample. Task 4: Alkalinity of natural water using Hach…

Vitamins are a small group of small molecular compounds that are vital in multi-cellular organisms; particularly humans. Ascorbic acid, which is commonly known as vitamin C is naturally present in some foods, added to others, and available as a dietary supplement. Vitamin C is an antioxidant and a lack of vitamin C can result in variety of illnesses. A common illness from a lack of ascorbic acid is; scurvy. Scurvy causes edema of the gums, exhaustion, and sometimes ulcerations of the gums.…

The filter paper traps the solid while a vacuum draws the liquid through the funnel into the flask. These methods aid in the synthesis of the artificial kidney stones in order to determine the kidney stones solubility. Methods: The three most common kidney stones, such as Calcium Oxalate (CaCl2 and Na2C2O4), Calcium Phosphate (Ca(NO3)2 and 2Na3PO4)…

INTRODUCTION: Losartan Potassium (LSP)[FIG.1.A], 2-n-butyl-4-chloro-1-[p-(o-1Htetrazol- 5-ylphenyl) benzyl]-imidazole-5 methanol monopotassium salt is a highly selective, orally active, non-peptide angiotensin II receptor antagonist indicated for the treatment of hypertension. It has a more potent active metabolite (II, 2-n-butyl-4-chloro-1-[2- (1H-tetrazol-5 yl) biphenyl- 4-yl) methyl] imidazole-5- carboxyl acid)[1]. The determination of Losartan has been carried out in tablets by HPLC,…

found, then the final volume can be found. The equation M1V1=M2V2 must be change into (M_1 V_1)/M_2 =V_2. The final volume needed for the red dye was 5.00 mL, the blue dye 3.60 mL, and the rest was filled up with deionized water up to 25 mL in a volumetric flask. Only one trial was done. To measure the accuracy of the created solution, the solution was put in a UV-Vis spectrometer. Then the absorbance curve of the created solution was compared to the absorbance curve of the Gatorade.…

The aim of this experiment was to investigate which technique – out of gravimetric analysis and colourimetry – was the most appropriate and accurate method to practice when calculating the percentage yield of a reaction. When examining the data obtained from the investigation, there was evident that there were some trends in the results. For the three graphs showcasing the results for gravimetric analysis in task one and task two, there was no general pattern. This was due to the fact that in…

Materials and Methods 4.1 Materials and equipments Table no. 4.1: Materials/Chemicals used in the project work S.No. Material/Chemicals Property Source 1. Tinidazole Pure drug Trozan Pharma 2. Guar gum Polymer Central drug house Pvt. Ltd. New Delhi 3. Starch Disintegrant Nice Chemicals 4. Micro crystalline cellulose Diluent, Disintegrant Loba Chemie, Mumbai,India 5. Talc Lubricant Nice Chemicals Pvt. Ltd. 6. Acetone Solvent Nice Chemicals Pvt. Ltd. 7. Potassium dihydrogen phosphate…