Floyd Askew 3/19/13 CHEM 1211L Lab Report Introduction The purpose of this lab is to use volumetric analysis to determine the concentration of unknown substances. A sodium hydroxide solution is standardized to assist in finding the concentration of an acetic acid. An indicator must be used to pin point the equivalence point‚ the point in which 1 mole of a substance is equal to 1 mole of another. When that is found‚ we can determine the concentration. HC2H3O2 (aq) + NaOH (aq)
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Analytical Chemistry Spring 2014 September 2nd‚ 2014 Pre-Lab 1: Calibration of Volumetric Glassware Objective: The sole objective of this lab is to become acquainted with the scientific techniques that are utilized in this lab including: data analysis‚ analytical balance‚ and use of glassware and lab materials. To demonstrate these basic concepts‚ a 50 mL buret and 10 mL volumetric flask will be calibrated. Apparatus: Procedure and Equipment: The following equipment
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Introduction Titration is a volumetric analysis technique used to find the concentration of an unknown substance. There are several types of titration but the one used for this experiment is called acid-base titration as the substance we are titrating is acidic. Acid-base titrations are based on the neutralisation reaction between the analyte and the acidic or basic titrant. The analyte is the solution of unknown concentration and the titrant is the solution of accurately known concentration used
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Properties Gas / Air flow rate = 1000 kg/h OR 0 m3/h = 0.2778 kg/s = 0 m3/s Gas pressure at entry = 1.0000 atm Gas temperature at entry = 30.00 oC = 303.00 oK Gas / Air mol weight = 29 Component to be scrubbed Component Name = HCL Vap Component flow rate = 70 Kg/h % comp. in
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The air-flow rate of flotation machine can directly affect the efficiency and quality of products. The main factors affecting the flotation machine air-flow rate can be summarized as the following:1‚ flotation machine impellers and cover the gap: the gap‚ the inflation decreases‚ but the gap is too small will cause the impeller and cover the impact and friction‚ and inflation fell. More appropriate for the gap of 5 to 8 mm2‚ flotation machine into the plasma volume: when the slurry into the impeller
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convergent divergent? What assumptions are adopted in analyzing flow through nozzle? Explain the significance of critical pressure ratio. What is the steady flow energy equation of nozzle? Explain its use in calculating the steam velocity at exit? Why the divergent portion of nozzle is necessary? Define nozzle efficiency. What is the effect of friction in nozzle Explain the physical concept of critical pressure ratio Explain supersaturated flow through nozzle & Wilson line? What is the metastable expansion
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bucket‚ and how the force is related to the rate of momentum flow in the jet. The purpose of this experiment is exactly to measure out the reaction force generated by a jet of water striking on a solid surface with different degrees of flow deflection‚ and compare the results with the Theoretical equation. Apparatus This experimental apparatus consists of a water nozzle‚ a set of impact surfaces‚ a spring scale connected to a balance beam‚ a flow meter‚ and plumbing for recirculating the water
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Example 1 Nozzle Flow - Steam Steam at 1.5 bar and 150 deg C enters a nozzle at 10 m/s and exits at 1 bar. Assuming the flow is reversible and adiabatic‚ determine the exit temperature and velocity. If the exit nozzle area is 0.001 m2‚ evaluate the mass flow rate of the steam through the nozzle. P1 = 1.5 bar T1 = 90 deg C V1 = 10 m/s A2 = 0.001 m2 P2 =1 bar T2 = ? V2 = ? mdot = ? V2 = sqrt(V1*V1+2*(h1-h2)) mdot = rho*A2*V2 = A2*V2/v2 T2 382.60 m/s 0.22 kg/s 111.81 degC Superheated
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energy‚ momentum are conserved under respective condition‚ a variety of physical phenomena may be describe using continuity equations. By using first law of thermodynamics‚ energy cannot be created or destroyed. It can only transfer by continuous flow. Total continuity equation (TCE)‚ component continuity equation(CCE) and energy equation(EE) is applied to do mathematical model. Total continuity equation is the principle of the conservation of mass when applied to a dynamic system. The unit of
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Chennai – 600 036 CH 3080 Process Equipment Design Problem set – IA 1. Crude oil‚ specific gravity of 0.887‚ flows through the piping shown in Figure. Pipe A is 50-mm Schedule 40‚ pipe B is 75 mm Schedule 40‚ and each of pipes C is 38-mm Schedule 40. An equal quantity of liquid flows through each of the pipes C. The flow through pipe A is 6.65 m3/h. Calculate (a) the mass flow rate in each pipe‚ (b) the average linear velocity in each pipe and (c) the mass velocity n each pipe. (d) What capacity
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