given in Table 2 of experiment 2. Procedure Part A In Part A‚ The main purpose was to find the determination of the density of the unknown (j41) and by doing that we had to determine volumes of the unknown liquid (j41) using three different volumetric devices which are graduated cylinder‚ pipette and burette. Then we had to perform three measurement trials on each device. Graduated cylinder: I dried a clean 50.0 ml graduated cylinder and also measured with a balance and I got 66.39g after
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ME 4600:483 – Lab Notes Revised 04/07/05 Flow Measurement Table of Contents Flow Measurement ......................................................................................................................... 1 I. Objective ................................................................................................................................. 1 II. Apparatus...................................................................................................................
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EXPERIMENT : Iron in Breakfast Cereal by Atomic Absorption Spectroscopy OBJECTIVES : 1) To determine the actual iron content of different brands of cereals 2) To compare the experimental results with the values listed on the manufacturer’s labels. INTRODUCTION : Iron is one of the important minerals that is required for our bodies to function properly. Most of the iron in our body is found in the blood such as haemoglobin‚ approximately 60 -70% of the human body’s iron is found
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bleeding from all mucous membranes. Research Methods and Materials The apparatus and materials used were Orange‚ Lemon‚ Lime‚ 0.1g/1000cm³ of indophenol(DCPIP)‚ 2mol/dm⁻³ of ethanoic acid‚ 50cm³ burette‚ pipette‚ clip‚ 250cm³ conical flasks‚ 100cm³ volumetric flasks‚ 250cm³ beakers‚ filter funnel‚ retort stand and
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determine the concentration of an unknown solution of potassium permanganate. APPARATUS Beaker‚ burette‚ glass rod ‚volumetric flask 100ml ‚dropper CHEMICALS Potassium permanganate (KMnO4)‚ distilled water PROCEDURE A. Preparation of the KMnO4 standard solution 1. KMnO4 was weigh accurately to nearest mg. The reading was recorded. The solid transfer to a 100ml volumetric flask using funnel. 2. The solid was dissolved with distilled water. The flask was shaken after using stopper. Distilled
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Filtered solutions were ultrasonicated for 20 min.100 mg of Cilnidipine and 125 mg Chlorthalidone were weighed accurately and transferred to 100 ml volumetric flask seperately and volume was made up with Methanol. Standard stock solution of both the drugs were used for the preparation of binary mixture of CIL and CHL.1.0 ml CIL Standard stock solution and 1.0 ml CHL standard stock solution were taken
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composition‚ and density to prepare solutions that will display chemical oscillation upon mixing. Solution A was prepared by transferring the calculated amount of malonic acid to a volumetric flask with a small amount of distilled water. Then the calculated amount of manganese sulphate solution was pipeted to the same volumetric flask along with distilled water to the mark. Solution A was then transferred to a labelled beaker. Solution B was prepared by collecting 30mL of sulfuric acid and the calculated
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n M= m (0.005 mol) * (392.21 g/mol) = 1.96 g 1) Measured the required mass of iron (II) compound in 100 mL beaker 2) Dissolve the solid in about 40 mL of H2SO4 (aq) 3) Transfer this solution into a clean 100 mL volumetric flask‚ rinsing the beaker solution into the volumetric flask to get to 100 mL of solution. 4) Pipette 10.0 mL of the standard iron (II) solution into a 250 mL Erlenmeyer flask. 5) Titrate the acidic iron (II) sample with KMnO4 (aq). 6) Repeat steps 4 and 5 until three consistent
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Pipette Filler 7. 50ml Volumetric flask × 4 Part two Method 1. Using a Methyl orange solution of 40ppm prepare 4 volumetric flasks containing methyl orange 2ppm‚ 4ppm‚ 6ppm‚ 8ppm. 2. To do this I used a pipette filler and pipette to measure out the amount of methyl orange I needed . 2.5mls = 2ppm‚ 5.0mls = 4ppm‚ 7.5mls = 6ppm & 10mls = 8ppm 3. After I measured out my methyl orange I diluted each with deionised water up to the calibration mark on the volumetric flask. 4. I then
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