Julia Macrino Mr. Musto Chemistry Block 7 September 23‚ 13 Materials: graduated cylinder 4 beakers glass funnel plastic funnel ring stand filter paper stirring rod charcoal sand foul water sample rubber tubing pinch clamp iron ring plastic cup scoop Objective/Purpose: To purify a sample of foul water using oil-water separation‚ sand filtration‚ and charcoal adsorption and filtration. Procedure: First‚ you have the measure the foul water sample and record it in your
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3. Place the test tube of nitric oxide below the water surface. Using a submerged funnel‚ bubble the nitric oxide into the large measuring cylinder. Measure and record this volume. 4. Very carefully transfer the oxygen into the large measuring cylinder without allowing any to escape into the atmosphere. (This is best done by tilting the large measuring cylinder and sliding the funnel and small funnel beneath it). 5. Observe any evidence of reaction and movement of water level in the
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The content was transferred to a separatory funnel (30ml)‚ using water (5ml) and dichloromethane (5ml) to complete the transfer. The mixture was shaken and left to settle‚ the organic layer was removed to an Erlenmeyer flask and the aqueous layer was extracted once more with dichloromethane (5ml) and then combined with the previous organic extract. The combined organic layers were dried with anhydrous sodium sulfate‚ transferred through a Hirsch funnel into a filter flask (25m) attached to an aspirator
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the flask was shaken until it dissolved. The flash was rinsed with 15 mL dichloromethane and it was added to the separating funnel. 10 mL of water was added to the funnel and shaken to mix the layers. The lower organic phase was drained into the Erlenmeyer flask and the aqueous phase out of the funnel. After that‚ the organic layer was returned to the separating funnel and washed with 15% NaCl solution. Anhydrous sodium sulfate was used as the drying agent and allowed the solution to stay for
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Evaporation. This is the process of heating a mixture in order to drive off a volatile liquid and make the remaining component dry Materials: beakers Bunsen burner and tubing chemical scoop electronic balance evaporating dish filter paper funnel gloves (disposable) goggles graduated cylinder pipets ring stand and ring sparker stirring rod test tubes tongs wash bottle watch glass water wire gauze weigh
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Name: Lisa Brewer iLab‚ Week # 2 CATIONS AND ANION LAB Introduction The purpose of this week’s lab is to learn to demonstrate a double-replacement reaction of ionic compounds. To accomplish this‚ two ionic compounds will be mixed together and the product will precipitate out of solution. In this procedure‚ the product must be precipitated out of the solution and then weighed. For this lab‚ lead (II) nitrate (Pb(NO3)2) and potassium chromate (K2CrO4) will be reacted together to demonstrate
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will be cleaner than the initial water sample‚ but not to the standard that I would wash my hands with. Significant terms to know include purification‚ filtration‚ adsorption‚ volume‚ clarity‚ dissolved‚ filtrate‚ impurities‚ pipette‚ clay triangle‚ funnel cone‚ iron ring‚ beaker‚ and Erlenmeyer flask. Cautions to be aware of is to not pour any sand or gravel into the sink and do not test the water sample by drinking or tasting. There will not be any toxic chemicals involved in this lab. To perform
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Name: Name of lab partner: Date: Title: Determination of the valency of magnesium Objective: To study the quantitative relationship between the amount of reactant and products of a reaction. A known starting mass of magnesium and the measured collection of hydrogen gas will be used to determine the reaction stoichiometry and the valency of magnesium. Introduction: In Chemistry‚ stoichiometry is the study of the quantitative relationship between amounts of reactants and products of a reaction
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self-weight from the narrow mouth of funnel designed specially. This funnel is called as V-funnel. This test is a self-compactibility test to measure the capacity of concrete to pass into the spaces. This test determines the viscosity and passing capacity of SCC. Fresh SCC is filled to the funnel without any compaction or vibration and then the sliding cover under the funnel is opened and the filling time of all concrete in the funnel to the pail is recorded. Fig. 2 V-funnel test L-box test L-box test is
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ml) Everclear brand 190 proof grain alcohol disposable facemasks plastic goggles latex or rubber gloves food chopper (food processor or blender) 12 - quart-size wide mouth glass canning jars w/lids large funnel w/strainer built in (fruit strainer) 1 gallon glass jug w/tight-fitting screw-on cap funnel big enough to hold a coffee filter coffee filters electric hotplate heat spreader pan to use as double boiler cooking thermometer 500 ml Pyrex flask w/one-hole stopper small ice bucket or plastic container
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