INTRODUCTION In order to complete my 2nd professional practice (work experience for University)‚ I worked as an Assistant Administrator Engineer for Ingenieria y Construccion B&L Ltda from January to March‚ 2006‚ at the construction of two restaurants‚ Parrilla Grill‚ and China Grill at the Plaza Oeste Mall located in Santiago City. My labour was very variable; I developed the budget‚ Gantt chart‚ drinking water and waste water system drawings and supervising installation works. Besides making
Premium Water Project management Gantt chart
diameter of soil particle and the values 10‚ 30 and 60 refer to the percentage of particle of smaller sizes. D10 refers to the effective size for the soil. Indication of soil distribution size is given by constant coefficient‚ that is: Cu = D60/D10 Value of Cu is a measure of uniformity of soil. Coefficient of curvature (Cc) is a measure of curve shape between D60 and D10 and is given as‚ Cc= (D30)2
Premium Particle size distribution Sieve analysis
331.435 | 584 newspapers | 331.436 | 585 newspapers | 331.435 | 586 newspapers | 331.430 | 587 newspapers | 331.423 | 588 newspapers | 331.413 | 589 newspapers | 331.400 | 590 newspapers | 331.385 | Calculations: Cr=cu/cu+co where Cr= critical ratio. Cu=1-0.2=.8 Co=0.2 Therefore‚ Cr= .8/.8+.2=.8 which is equal to .84 (z value) on the standard normal distribution function table. To find the optimal stocking
Premium Normal distribution Marginal cost Newspaper
kilometer square centimeter cubic centimeter mg g kg mL L kL mm cm m km cm2 cm3 ounce pound quart gallon inch foot yard mile square inch square foot cubic inch cubic foot oz lb qt gal. in. ft yd mi. sq in. sq ft cu in. cu ft Copyright ©2011 by the Commonwealth of Virginia‚ Department of Education‚ P.O. Box 2120‚ Richmond‚ Virginia 23218-2120. All rights reserved. Except as permitted by law‚ this material may not be reproduced or used in any form or by any means
Premium Imperial units United States customary units
oxygen atoms. Determine the empirical and molecular formula of the compound. 2. A. Copper can be produced from the reaction of aluminum and excess copper(II) sulfate: Al(s) + CuSO4(aq) Al2(SO4)3(aq) + Cu(s) B. How many moles of aluminum is necessary to produce 4.50 g of Cu if the reaction is 91% complete? 3. A. How many grams of disulfur dichloride is produced from the reaction between 20 g of sulfur and 80 g of chlorine? B. How much of the excess reactant remained? (The
Free Oxygen Nitrogen
Equilibrium shifted since there was higher concentration on the product side. 3.Experimental error‚ is hard to differentiate by looking the colours‚ there for it may not be accurate as it was expected. Questions: 1. Cu was completely changed to products‚ and can be observed for cu++ a role that shows that only the scn ion can change the colour. 2. In part I‚ system II the reaction of HNO3 causes a shift for the concentration of H+ was reacting and also observed the reciprocal of the forward
Premium Chemical reaction Temperature Acid
changes during this experiment. What evidence did you use to decide that something was a chemical change? Give at least two examples of chemical changes you observed. In CuCo3 reacting with HCl‚ which released a light green gas and produced bubbles. Cu(NO3)2 changed to a green and yellow color‚ and NaCl mixed with HCl changed to hold a slightly yellow tint. CuCo3 with NaOH changed to a darker color‚ also irreversible. These are all signs that a chemical change occurred. Classify the following properties
Premium Chemistry Sodium hydroxide Base
odor No effect No effect No effect Red litmus paper turn blue White bubbles No effect Cu Brown No odor No effect No effect No effect Red litmus paper turn blue No effect No effect Zn Silver No odor No effect No effect No effect Red litmus paper turn blue Fizzing No effect MgO White Powder smell No effect No effect Strong boil Red litmus paper turn blue Yellow fizz No effect Cu(NO3)2 Blue No odor Turn green No effect No effect No effect Turn green No effect
Premium Sodium Color Green
this experiment‚ you need two erlenmeyer flasks‚a timer‚ a LabQuest with a temperature probe‚ two beakers‚ ice‚ distilled water‚ starch solution‚ 0.200 M of KI‚ 0.005 M of Na2S2O3‚ 0.200 M of KNO3‚ 0.100 M of K2S2O8‚ 0.100 M of (NH4)2SO4‚ and 0.100M Cu(NO3)2. Students will first mix a specific amount of a combination of different concentrations of instructed chemicals and wait for the mixture to turn blue. During this time‚ students will swirl
Premium Chemical reaction Reaction rate Chemistry
bEAN BAG ISOTOPES:ABUNDANCE AND ATOMIC MASS LAB By: Catriona Whalley Partner: Ming Siegel Due: 1.14.10 Prelab A new atomic theory‚ in which all atoms of the same element are identical to one another and equal in mass‚ was proposed by the scientist Dalton. Although the theory had its flaws and was simple‚ it was revolutionary. Scientists became able to study the actual structure and mass of atoms after the discovery of radioactivity. Soon‚ isotopes were discovered‚ as atoms of the same element
Premium Atom Atomic number Chemical element