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Draw a Data Flow Diagram (DFD) and an ER Diagram depicting a student enrolling in a university, adding, dropping, and finishing a class. Also, include the process of grading and all modular design components (sequence, selection, iteration).
From data below, calculate the total heat (in J) associated with the conversion of 0.499 mol ethanol gas (C2H6O) at 301°C and 1 atm to liquid ethanol at 25.0°C and 1 atm.
you have a 1mm stock solution of arsenic to treat culture cells in a liquid medium. you need to treat your cells with
Ammonia will react with oxygen in the presence of a copper catalyst to form nitrogen and water. From 164.5 C to 179C, the rate constant increases by a factor of 4.27. What is the activation energy of this oxidation reaction
Cinsider the reaction 2KCl3(s) --> @Kcl(s) + 3O2(g) How many grams of oxygen are produced from the complete reaction of 23.8g of KCL3? How many molecules are present in 1.80g of C6H8O6
How much heat is required to vaporize 353 g of liquid ethanol at its boiling point? ΔHvap = 38.6 kJ/mol.
Explain in some detail-consider solvent, nucleophile, and substrate structure. Provide the appropriate mechanism for the reaction of bromocyclopentane in sodium iodide /acetone. 2. Why do the reactions in NaI /acetone go to completion
Sodium carbonate was used to precipitate silver from a solution. 6.00 grams of silver carbonate were recovered from 1.500L of solution. What was the concentration in ppm of silver ions in the original solution?
What products are generated by the yeast enzyme fermentation of fruit sugar. Write out this chemical reaction.
Three Introductory Chemistry students each measured 50.0 mL of 1.0 M NaOH into "double-walled" styrofoam cup calorimeters. Then, Sue added 50.0 mL of 1.1 M HCl to her NaOH solution
Calculate the pH of a solution made by adding 11.0 g of sodium formate, NaHCOO, to 400. mL of 0.65 M formic acid, HCOOH. Hint what kind of solution is made
What government agency and statutes/regulation(s) govern for the labeling and registration of these hazardous household products?
An electron in the ground-state He+ ion undergoes a transition to a state described by the wavefunction R4,1(r)Y1,1(?,). (a) Describe the transition using term symbols. (b) Compute the wavelength, frequency, and wavenumber of the transition.
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