Discussion Question 1 A concentrated phosphoric acid solution is 85.5% H3PO4 by mass and has a density of 1.69 g/mL at 25°C. What is the molarity of H3PO4? What is the mole fraction of urea, CO(NH2)2, in a solution prepared by dissolving 5.6 g of urea in 30.1 g of methanol, CH3OH? How will an […]
In an essay explain what can a forensic examiner determine by the analysis of fractured window panes? What evidence can be gathered by measuring the density of a glass fragment?
Topic: BCJ351 – FORENSIC SCIENCE In an essay explain what can a forensic examiner determine by the analysis of fractured window panes? What evidence can be gathered by measuring the density of a glass fragment?
What important step does calcium methoxide facilitate? Is the calcium methoxide used up in the synthesis?
Assignment Data Table 1 Mass of Graduated Cylinder Volume of Biodiesel Mass of G.C. + Biodiesel Mass of Biodiesel Density of Biodiesel pH of Biodiesel Presence of Intermediates? (y/n) What important step does calcium methoxide facilitate? Is the calcium methoxide used up in the synthesis? Based on your results, was there a complete synthesis of […]
Discuss the formulation of a technique chart and post to the discussion drop box. List the factors that influence a technique.
Technique Chart Assignment Diagnostic Imaging 1 Many times a technique chart will come with the purchase of a new radiology machine, however, it may not be based on the same type of film and screens that are being used in your hospital. Perhaps the machine is older and the technique chart has long since been […]
Calculate the running costs for a full week if the electricity price is 0.20Euro/KWh, between 7am and 7pm and 0.14 Euro/KWh between 7pm and 7am.
Task 1: Solar heating systemsA solar heating system is used to produce hot water for showering, see (thefancy) Figure 1. The systems consists of several components, of which the mostimportant ones are the solar collector, the storage tank, the electric heater andthe mixing valve. The solar collector absorbs ̇q(t) = (300 + d) exp{−0.2(t −12)2}[W/m2] […]