How deep must the cable be buried? It must be 42 inches under the top of the pavement. 6. What are the exact detailed compaction requirements as listed in the manual provided by the city for restoration of any surface that is trenched? The backfill material needs to be compacted in lifts of loose depth that does not exceeding 8 inches and compacted to at least 95% of Standard Proctor Density at optimum moisture content, +/- two percentage points, as determined by ASTM D698 or provide the City with suitable advanced technology compaction testing methods, as approved by the Director 7.
The prototype of SCC for structural applications was first completed in 1988, it was called “high performance concrete”, later named as “self-compacting high performance concrete”. This prototype performed satisfactorily with regard to drying and hardening shrinkage, heat of hydration, denseness after hardening, and other properties. This concrete was defined
Jessica Atanova CHEM 104 lab 03/10/14 SUBSTANCES Granular zinc- gray crystal like | Iodine crystals- dark, circular, rock-like | De-ionized water: used for standard Zinc Ion procedure. | Materials: Boiling tube: for products. | Small test tubes: used to centrifuge the solution and precipitate | Graduated cylinder: used for measurement of water | Stirring rod: used various times to stir samples and solutions. | Spatula: used to measure and transfer the substances. | Centrifuge: used to isolate the solid from the solution | .
After it was properly cooled, the solution was equally distributed to four centrifuge tubes and centrifuged for 5 minutes. The supernatant was poured out and the leftover clay was suspended in distilled water, then it centrifuged again and the supernatant once again was disposed of. The clay in the four centrifuge tubes was removed and put in a large beaker that contained the rest of the class’s clay. The next week, 40 mg of the clay made by the class, 39.0 mg of Bentonite clay, and 40 mg of charcoal were each added to a centrifuge tube along with 15 mL of Procion Red dye and shaken. The tubes were centrifuged for 2 minutes, then taken out and transferred to cuvettes using a pipet.
What is the structural classification of the highlighted joint? 12. What is the functional classification of this joint? SC121 Unit 7 Assignment 13. Identify the highlighted bone.
Quality Control for the Athenium Baking Soda Company A Self-Directed Experiment 16 April 2012 INTRODUCTION The Athenium Baking Soda Company has begun producing baking soda (sodium bicarbonate, or sodium hydrogen carbonate). NH4HCO3 + NaCl ==> NaHCO3 + NH4Cl Due to the high concentration of the brine solution that is used to generate the product, contaminants are often present in the finished product as chloride compounds. The contaminants may be detected when the finished baking soda product is dried and filtered. PURPOSE: In this experiment, we will be employing quality control by analyzing the composition and purity of the contaminated baking soda samples. To perform this experiment, we will utilize emission spectra, titrations, and thermal gravimetric analysis, using knowledge from Experiments 10, 4, Titrations of Na2CO3 and NAHCO3 by HCl (hydrochloric acid) will be performed to determine the concentration of HCl, as well as the number of moles of HCl present within the sample of baking soda.
Write a hypothesis on what you think will happen when mixed. 3. Combine the substances; record observations. Hydrochloric Acid and Magnesium 1. Add hydrochloric acid to a test tube.
Question: (TCO 3) The appropriate cost accounting system to use when inventory items are produced on an assembly line is 2. Question: (TCO 3) As production occurs, materials, direct labor, and applied manufacturing overhead are recorded in 3. Question: (TCO 3) “Equivalent units” expresses all activity of the period in terms of 4. Question: (TCO 3) Holly Inc. manufactures dolls. The following data were provided for production results for the current month.
6. What is the order in which foliated metamorphic rocks form? What is the parent rock for foliated metamorphic rocks? Slate, phyllite, schist, gneiss. Shale or slitestone.
We are performing the experiment to gain our spots on the team of quality control for the Athenium Baking Soda Company. The purpose of the quality control is to determine the quality and safety of use of the baking soda. The theory behind thermal gravimetric analysis is that when a mixture is heated to a sufficiently high temperature, one component decomposes to form a gaseous compound while the other does not decompose. The mass is measured before and after the heating and stoichiometric ratios are used to determine the percent by mass. The chemical equation to be used is : 2NaHCO3(s) Na2CO3(s) + CO2(g) + H2O(g) In the second part, 1.0 M HCl will be titrated into a solution with a known amount of sodium carbonate (Na2CO3), the pH will be measured as it becomes more acidic and the equivalence point (the point at which HCL and Na2CO3 reach equilibrium) determined.