period of 1 hour was followed and each was tested for starch and maltose. A similar procedure was repeated with pepsin‚ with the test tubes prepared as follows: Tube 1 = 5 ml pepsin 5% soln + 5 ml HCL (0.5)%; Tube 2 = 5 ml pepsin (5% soln)+ water 5 ml; Tube 3 = 5 ml HCL (0.5%) + 5 ml of water; Tube 4 = 5 ml pepsin 5% soln) + 5 ml NAOH (0.5%). Lastly‚ the above procedure was repeated with
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The Living Plant Cell Objectives: * To study the different types of plant cells. * To observe plant cells as to their shapes‚ structures and function. Materials: Microscope cover slip glass slide water onion Iodine soln. hydrilla salt tomato razor blade Medicinal dropper epidermal tissue of rhoeo-discolor Procedure: 1. Onion Cell 1. Prepare an onion bulb 2. Place a drop of water at the center of the slide. 3. Pell
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light blue which will be the end of the chemical reaction. Once the titration is complete you can calculate your water hardness. The formula used to calculate the water hardness is as followed: Mg Caco3/1L CaCO3 soln= VmL Na2EDTA soln/0.02500L CaCO3 soln x M mol Na2EDTA/1L Na2EDTA soln x 1 mol CaCO3/1 mol Na2EDTA x 100.1g CaCO3/ 1 mol CaCO3/1 mol Na2EDTA x 100.1 g CaC03/ 1 mol CaCO3 Above in the formula V represents the actual delivered volume of Na2EDTA solution and M is your actual molarity.
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3log10scale (semilogx‚semilogy‚loglog) plot cmd soln:>> x=[0:10:1000]; >> y=x.^3; >> semilogx(x‚y) >> x=[0:10:1000]; >> y=x.^3; semilogy(x‚y) >> x=[0:10:1000]; y=x.^3; loglog(x‚y) 5. plot y=cosx and z=1-(x^2)/2 + (x^4)/24 on 0 x=linspace(0‚pi‚100); >> y=cos(x); >> z=1-((x.^2)/2)+((x.^4)/24); >> plot3(x‚y‚z) 6.circle draw a circle of unit radius x and y co ordinates 100 points of the circle the parametric eq is x=cos(t) y=sin(t) soln:>> theta=linspace(0‚2*pi‚100); >> x=cos(t);
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ANALYSIS PETROLERA ZUATA‚ PETROZUATA C.A PETROLERA ZUATA (PETROZUATA) CASE ANALYSIS: Q1. HOW SHOULD PDVSA FINANCE THE DEVELOPMENT OF THE ORINOCO BASIN? WHAT ARE THE COSTS AND BENEFITS OF USING PROJECT FINANCE INSTEAD OF TRADITIONAL DEBT FINANCE? Soln. PDVSA should go for project financing for the development of the Orinoco basin. PDVSA is not looking for financing of one deal‚ but at a chain of many deals which would be a public- private partnership between PDVSA and a foreign organization for
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Acid-Base Titrations A Titration of Potassium Hydroxide Phthalate and Sodium Hydroxide Hanna Piper Department of Chemistry‚ SUNY College at Brockport‚ Brockport‚ NY 14420 Chemistry 205.06 Abstract Titrations are used to find the molarity of an unknown solution. A titration begins with an analyte and titrant being used to measure the unknown molarity of the analyte. In the following experiment‚ sodium hydroxide was used as the titrant and potassium hydroxide phthalate was used as the
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Purpose: To determine the general rate law for the reaction of S2O82- + I- through a series of experiments and calculations. Materials: -Temperature probe -3 large test tubes -3 rubber stoppers -Pipets -0.20 M KI soln -0.20 M NaCl soln -0.010 M Na2S2O3 soln -2% starch soln -0.20 M K2SO4 -0.20 M K2S2O8 -0.2 M CuSO4 -Timer or stopwatch -Small beaker -Hot water Procedure: Refer to Lab #12‚ No changes Data: Table #1: Quantitative/Qualitative Observations Room Temp: 25.4°C Experiment
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Bromination of Acetanilide Objective: The objective of this experiment was to use melting point and NMR to determine which of two isomers‚ ortho or para‚ would most likely form after brominating Acetanilide through electrophilic aromatic substitution. Procedure/Observations: 1. Weigh out ~280 mg of acetanilide in a 10 mL r.b. flask with a stir bar. 2. Then‚ add 2.0 mL of glacial acetic acid using a calibrated Pasteur pipet. 3. Stir the mixture until all of the acetanilide has dissolved
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THE UNIVERSITY OF HONG KONG DEPARTMENT OF STATISTICS AND ACTUARIAL SCIENCE STAT2801 Life Contingencies LN1: Chapter 3 (Actuarial Mathematics): Survival distributions Age-at-death random variable T0 – age-at-death (lifetime for newborn) random variable To completely determine the distribution of T0 ‚ we may use (for t ≥ 0)‚ (1) (cumulative) distribution function: F0 (t) = Pr(T0 ≤ t) (2) survival function: s0 (t) = 1 − F0 (t) = Pr(T0 > t) (3) probability density function: f0 (t) = F0 (t) =
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miscommunication and answer the following questions. i. Why did the miscommunication occur? ii. What impact did it have? iii. If you had a chance to do it over again‚ what specifically would you do differently? Solutions: Soln 1: Not just in modern business‚ communication is an indispensable asset in every aspect of life. Even in our day to day life we have to be good in communication to tell the audience what we want to say. The importance of communication in the workplace
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