Stoichiometry of Chemical Reactions Objective In this lab we took Fe(NO3)3 and NaOH and mixed 7 different mole ratios in graduated cylinders to determine what the mole ratio is. We also did the same thing with solutions of CuCl2 and Na3PO4. We determine the mole ratios by graphing the volume of reactant #1 vs. volume of precipitate for each reaction. Data Part 1.) Cylinder 1 2 3 4 5 6 7 Fe(NO3)3‚ 0.1 M‚ ml 5 10 12 15 17 20 24 NaOH‚ 0.1 M‚ ml 55 50 48 45 43 40 36 Fe:OH mole ratio
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colourless‚ but one of the products‚ sulphur‚ is yellow‚ so we can use this fact to follow the rates of reaction. I am going to investigate how the concentration of the acid effects the speed of the reaction. Apparatus 1 small measuring cylinder 1 large measuring cylinder 1 small beaker 1 large beaker Hydrochloric Acid Sodium Thiosulphate Cross drawn on paper Conical flask Water Stopclock Method First of all we measured out 25cm3 acid and 25cm3 sodium thiosulphate. Then we drew a cross onto
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2. Right-click (PC) or Command-Click (Mac) on the table and select print. Part I: Density of Unknown Liquid | | Trial 1 | Trial 2 | Trial 3 | Mass of Empty 10 mL graduated cylinder (grams) | 25.31 | 25.32 | 26.03 | Volume of liquid (milliliters) | 8.12 | 8.22 | 8.52 | Mass of graduated cylinder and liquid (grams) | 35.41 | 36.01 | 36.41 | Part II: Density of Irregular-Shaped Solid | Mass of solid (grams) | 42.35 | 40.65 | 40.95 | Volume of water (milliliters)
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the line. b. The Fill-O-Matic cylinder and nozzle must be taken to the filler control area in the same tray 6.1.5.b.1 There‚ a trained filler control area representative shall assemble the Fill-O-Matic cylinder pump and nozzle by checking off the components in the item list as they are being assemble following the VSP on page 2 of this SOP. 6.1.6 After the Check Out Prepared by and date is complete fill area representative must: 6.1.7 Reassemble the cylinders for stock or immediate use. 6
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Technology Guwahati 1 Gasoline Injection In a multi-cylinder engine with a carburetor‚ it is difficult to obtain a uniform mixture in each cylinder. The various cylinders receive the airgasoline mixture in varying quantities and richness. This problem is called the maldistribution and can be solved by the port injection system by having the same amount of gasoline injected at each intake manifold. By adopting gasoline injection each cylinder can get the same richness of the air-gasoline mixture
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Hypothesis- 1. The rate of reaction in the potato or liver will decrease when the temperature is increased. 2. The rate of reaction in the potato or liver will increase when the surface area is increased. Materials- • 100 mL graduated cylinder • Ice and water 250mL beaker (2) • Stirring Rod • 4 Test Tubes • Test Tube Clamp • Hot Plate • Potatoes • Timer • Test Tube Rack • Mortar and Pestle • Test Tube Brush • Tweezers • Ruler • Balance • Chicken Liver • Knife • Strainer
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warm add more cold water. There should only be 250ml water in each beaker so pour out excess water if any. 4. Label measuring cylinders as 1‚ 2 and 3. Set out beakers next to each other in a straight row and record the temperature of the water in the results table. Check temperatures to ensure they are all the same using the thermometer. Place each measuring cylinder in each water-filled beaker. 5. Pour 81 ml of hydrogen peroxide into an empty beaker and label it ‘Hydrogen Peroxide’ to clarify
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the brake pedal today‚ their foot moves a piston rod which is linked to the brake booster and the master brake cylinder. Depending on the pedal force‚ the master brake cylinder builds up the appropriate amount of pressure in the brake lines which - in a tried and tested interaction of mechanics and hydraulics - then presses the brake pads against the brake discs via the wheel cylinders. By contrast‚ in the Mercedes-Benz Sensotronic Brake Control‚ a large number of mechanical components are simply
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Module 3: ROTATIONAL KINEMATICS Reference Book: Properties of Matter – Dr. Tofazzal Hossain MOMENT OF INERTIA: According to Newton’s first law of motion‚ “a body must continue in its state of rest or of uniform motion along a straight line‚ unless acted upon by an external force.” This inertness or inability of a body to change by itself its position of rest or of uniform motion is called inertia. Exactly in the same manner‚ in case of rotational motion‚ also we find that‚ a
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Calculator Graduated Cylinders Water Wire Gauze Weigh Boats Pre-lab Questions: 1) The volume of the water is 43.0 mL 2) The volume of the metal shot and the water is 73.0 mL 3) The volume of the metal that was added to the graduated cylinder is 33.0 mL Procedure: 1. Fill graduated cylinder with 30 mL of water. 2. Put weigh boat onto the scale and press tare. 3. Put 3 scoops of metal 1 onto weigh boat. 4. Record the mass. 5. Pour metal from weigh boat into graduated cylinder. 6. Record the
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