(PIPAC) to know its ethanol content. Based on the testing done‚ only .5% of the volume of the product is ethanol. After the testing‚ the intrinsic properties were computed. Using the formula for density‚ D=mass/volume‚ 47.4 g/ml was obtained. For the specific gravity‚ the formula SG=density of the liquid/density of water‚ and .79 was
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Experiment 2&3 Recrystallization and Melting Points Determinantion of Benzoic Acid Abstract In experiment 2‚ recrystallization was used to purify the crude benzoic acid extracted from a mixture during experiment 1. Then a percent recovery for this recrystallization process was calculated. In experiment 3‚ the melting point ranges of the crude and purified benzoic acid were both determined by using Melt Temp Apparatus. Introduction Recrystallization is a purification technique for non-volatile
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whole practical‚ as pipettors are the fundamental tools used to measure liquids in laboratories. Not only did this develop the skills and confidence acquired for using pipettes‚ but it also gave an idea for what pipette would be best to measure out specific volumes for part three of the practical‚ which entailed finding out the concentration of a salt in an unknown substance by finding its density and comparing it to the density of water which is 1Kg. It was believed that the mechanical pipettor was
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There were several drops of the water cling to the beaker. This may increase the actual mass of water in each trial. In the density part‚ the mass and density of zinc electrode was measured and calculated to determine the accuracy of the measurement. The result shows that the densities of zinc electrode in two trials are 6.2±1.6 g/cm3 and 9.4±3.8 g/cm3 (The average density is 7.8±3.8 g/cm3)‚ which is not quite accurate‚ compared to the standard of solid zinc density1 (7.14 g/cm3)1. The random error
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"Diffusion - How atoms move through solids" Diffusion means mass transport by atomic motion. The mechanisms of Gases & Liquids is known as random (Brownian) motion and for solids is known vacancy diffusion or interstitial diffusion. Simply we can define diffusion as‚ the movement of particles in a solid from an area of high concentration to an area of low concentration‚ resulting in the uniform distribution of the substance. (Diffusion chapter 5‚ 2008‚ p.1) Ronald D. Kriz(1999) suggests that
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sound to each other and the faster sound can travel. It is easier for sound waves to go through solids than through liquids because the molecules are closer together and more tightly bonded in solids. Similarly‚ it is harder for sound to pass through gases than through liquids‚ because gaseous molecules are farther apart. The speed of sound is faster in solid materials and slower in liquids or gases. Elastic property- It relates to the tendency of a material to maintain its shape and not deform when
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that it uses a moving gas phase and a stationary liquid phase‚ and that the temperature of the gas system can be controlled. In a gas chromatograph the sample is shot in with a syringe and is immediately vaporized in a heated injection chamber. It is then introduced to a moving stream of gas called the carrier gas which sweeps the vaporized sample into a column filled with particles filled with liquid adsorbent. This column is usually filled with liquid that has a low vapor pressure and high boiling
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PERFORMANCE OF ROLLING OIL IN A TANDEM MILL Presented By: Darshan Keshari Mgr (ILS)/ Ranchi Indian Oil Corporation Ltd Acknowledgements: Dr. D. Saxena‚ IOC R&D Sri. S.K. Panda‚ IOC MD Dr. S. Paul‚ IOC R&D Sri. Sunil Kumar‚ SAIL- BSL. PROCESS FLOW DOIAGRAM OF A TYPICAL STEEL PLANT TANDEM MILL FATE OF METAL STRIP DURING ROLLING COLD ROLLING ROLLED COIL ROLLING OIL HAS TO TAKE CARE OF THE ROLL PROFILE AND LOAD FOR EFFECTIVE HEAT REMUVAL AND PROVIDING MINIMUM RECEDUE
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PROPERTIES OF SOLUTIONS A solution is a mixture of materials‚ one of which is usually a fluid. A fluid is a material that flows‚ such as a liquid or a gas. The fluid of a solution is usually the solvent. The material other than the solvent is the solute. We say that we dissolve the solute into the solvent. Some solutions are so common to us that we give them a unique name. A solution of water and sugar is called syrup. A solution of sodium chloride (common table salt) in water is called brine
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(v1). Using the density of water (1.0g/mL)‚ this volume can be converted into mass. This concept is shown by the equation [M= (v2-v1) x (1.0g/ml)]. To determine the energy consumed by the melting ice (E)‚ we must determine the energy released by the water to make the ice to melt. This energy can be determined by using the equation to calculate the energy of the temperature changes. The mass of the water releasing heat is determined by multiplying the initial volume (v1) by the density of water (1.0g/mL)
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