Mixtures can be separated by physical processes such as filtration and evaporation. Filtration is a process where solids and liquids can be separated. The liquid that passes through the filter paper is called a filtrate. Evaporation is a process where two liquids or a solid mixed into a liquid can be separated. To separate two liquids mixed together‚ the liquid
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In the experiment‚ synthesis of copper compounds‚ the purpose was to recover the original amount of copper after series of chemical reactions. Then returning the copper back to its original form. The copper wire originally weighted 1.0099 g‚ but after the copper was transformed into Cu(OH)2 to CuO to CuSO4 and finally into Cu‚ the mass of the recovered copper was 1.1023g; the percent yield was 109%. Since the percent yield is more than 100%‚ an error must have occurred somewhere in the lab. A possible
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pressure on the compressibility of yeast cells beds were further investigated both by filtration experiments and by centrifugal experiments based on the multiple speed equilibrium sediment height technique. When comparing the latter measurements with compression model calculations‚ we observed that the method based on centrifugal experiments suffers from rapid relaxation of the compressed bed. Concerning the filtration experiments‚ specific resistance of well defined bed of cells were calculated by a
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During this experiment‚ my lab partner and I learned of the two different types of filtration we can use in the laboratory. Those two types of filtration were the gravity filtration and the vacuum-assist filtration. We used chalk at the solid that needed to be filtered in the water solution‚ noticing that it was the suspension in the experiment. First‚ I prepared the filter paper correctly folding
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deprotonated by sodium hydroxide and acted as a nucleophile to attack the benzaldehyde. A water-cooled condenser was used to heat the solution at reflux. Vacuum filtration was used to wash and dry the product. The benzoin product was recrystallized by dissolving with a H2O/95% ethanol (2:1‚ v/v) solution and heated to reflux. Vacuum filtration was used to wash and dry the product. Introduction/Background: Introduction: Discussion of the mechanism of the performed reaction; discussion
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Problem Summary Applied Research Technologies‚ Inc. (ART) is facing a strategic decision in its Water Filtration Unit. The long-standing project‚ currently named RIMOS‚ has faced two market introduction failures. Despite these setbacks‚ the technology continues to show promise and our analysis of the available data suggests successful market introduction of the product for residential irrigation is encouraging. Analysis A SWOT and balanced scorecard analyses of marketing‚ finance and strategic
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Name: Bhumiben Shah Date: 31st Jan ‘13 EXPERIMENT # 2 RECRYSTALLIZATION; FILTRATION OBJECTIVES: 1. To perform recrystallization and filtration of given impure organic compound. 2. To purify impure acetanilide using reflux condenser apparatus and Hirsch funnel filtration. 3. To determine percentage recovery of pure material (which is)‚ purified by recrystallization and filtration. SAFETY PRECAUTIONS: 1. Operate the aspirator with the maximum water-flow using a stop cock to
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PhysioEx™ Lab: Cell Transport Mechanisms and Permeability Activity 1: Simple Diffusion Chart 1 Dialysis Results (Average Diffusion rate in mM/min) Solute Membrane (MWCO) 20 50 100 200 NaCl (—) 0.0150 0.0150 0.0150 Urea (—) (—) 0.0094 0.0094 Albumin (—) (—) (—) (—) Glucose (—) (—) (—) 0.0040 1) Which solute(s) were able to diffuse into the right beaker from the left? NaCl‚ Urea‚ Glucose 2) Which solute(s) did not diffuse? Albumin 3) If the solution in the left beaker
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Once the second 100 mL beaker reached 80°C and this was determined based on the glass thermometer. This heated solution was then poured immediately into the vacuum filtration system. The vacuum filtration system was set-up and ran identical to the experiment listed above. 10 mL of the 80°C saturated calcium hydroxide solution was measured using a 10 mL graduated cylinder. The 10 mL of the 80°C saturated calcium hydroxide solution was
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minutes‚ then add dropwise a solution of 0.63 g sodium acetate in 2.5 mL distilled water. Heat the resulting mixture on a hot plate to between 60 and 70oC for 15 minutes‚ with stirring‚ then cool to room temperature. Isolate the product by suction filtration and wash it with 6.0 mL of cold distilled water. Suction dry for 15 minutes‚ then dry in air. Determine % yield. Recrystallize about 0.2 g of the crude
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