acid solution‚ H2C2O4‚ 0.25 M‚ 60 mL * Potassium permanganate solution‚ KMnO4‚ approx. 0.02 M‚ 100 mL * Sulfuric acid solution‚ H2SO4‚ 6 M‚ 50 mL Materials: * Buret‚ 50-mL * Erlenmeyer flasks‚ 250-mL‚ 3 * Hot plate * Thermometer * Volumetric pipet‚ 10-mL * Volumetric pipet‚ 25-mL *
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of Cr(VI) to Cr(III). The capacity for removing Cr(VI) and total chromium gradually increased as the contact time proceeded‚ reaching values of 101.81 and 61.67 mg g-1 respectively‚ after 120 h. The opposite behavior was observed concerning the volumetric rates of Cr(VI) and total chromium removal. The pseudo-second order model adequately described the kinetic process of chromium biosorption by avocado shell‚ which suggests that this process chiefly occurs as a result of chemisorption. 1. Introduction
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Experiment 3 : Preparation of Solutions and Buffers Objectives : 1. To study and understand the principle theory and formula of preparation of buffer and solution. 2. To learn the methods of buffer and solution preparation. 3. To focus on concentration units of molarity‚ percentage of concentration‚ and dilution of solution. Introduction : When a substance‚ called a solute‚ is dissolved in another substance‚ called the solvent‚ a solution is formed. A solution is known as a homogeneous
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Determination of Florfenicol in Catfish by UV-mediated High Performance Liquid Chromatography (HPLC) 1. Introduction 1.1 Description of the Analyte Florfenicol (C12H14Cl2FNO4S) is a derivative of thiamphenicol. Its structure is identical to that of chloramphenicol – a synthetically developed antibiotic for veterinary use‚ such as treating a wide range of bacterial infections (Hayes p. 7). It is commercially available as 50 percent of Aquaflor® premix‚ which has been approved for the control of bacteria
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Determination of Manganese in Steel Submitted by: ------------------- Date of Submission: 27.03.11 Objectives: In steel production aside the iron‚ which is the primary source‚ some amounts of manganese is used together with carbon. The objective of this experiment is determining the manganese amount in the steel compound by using UNICAM UV-VIS Spectrometer. Theory: Many molecules absorb ultraviolet or visible light. The absorbance of a solution increases
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NAME : ZULHAIRI BIN MAMAT DATE : 24 AUGUST 2011 TITLE OF EXPERIMENT : DETERMINATION OF THE RELATIVE MOLECULAR MASS OF AMIDOSULPHURIC ACID DATA COLLECTION AND PROCESSING. QUANTITATIVE DATA Type equation here. Experiment | Burette reading / cm3 | Volume of solution used(±0.1 cm3) | | Initial reading(± 0.05 cm3) | Final reading(± 0.05 cm3) | | 1 | 0.00 | 24.70 | 24.7 |
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of Elements 2 X Hydrogen 2 XI s-Block Elements 5 XII Some p-block Elements 6 XIII Organic Chemistry –Some Basic Principles and Techniques 6 XIV Hydrocarbons 7 XV Environmental Chemistry 3 TOTAL 70 Class - XI Chemistry (Practical) Volumetric Analysis = 12 Marks Salt Analysis = 8
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then filter to a 100-mL volumetric flask. 6. Be sure to wash original beaker with water to allow for a quantitative transfer 7. Dilute to the mark on the beaker and mix well 8. Use citrate solution to determine how many drops are needed to make 0.5 mL of the vitamin extract to pH ~ 3.5‚ using the pH paper. (Count the drops; Only need to do this once) 9. Using a micropipette take 0.5 mL of originally diluted solution (vitamin extract) and place into a new 100 mL volumetric flask. 10. Add number
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Abstract: During the lab a better agent for absorbing Procion Red Dye was trying to be found. Using the different dilutions of a stock solution and a spectrophotometer an Absorbance vs. Concentration graph was created and using the trendline from that graph it was determined which agent‚ zeolite‚ magnetic zeolite‚ or charcoal were better at absorbing the dye. From the results collected it was found that charcoal was the best at absorbing the dye‚ when moles of dye per gram of agent used were calculated
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Title: ACID BASE TITRATION. Objectives: 1. To determine the concentration of acid using titration. 2. Skills of titration techniques. Apparatus: 1. 250 volumetric flask 2. 10mL measuring cylinder 3. 25mL pipette 4. 50mL burette 5. 250mL beaker 6. 150mL conical flask 7. Retord stand 8. White tile 9. Stopwatch 10. Pipette bulb Chemicals: 1. HCl solution 2. 0.1M NaOH solution 3. H2SO4 solution 4. Distilled water 5. phenolphthalein
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