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.134 mol of KCl and .257 mol of CaCl2 were dissolved in water. calculate the total number of moles of Cl- ions in the solution
A container is filled with C2H6O until its concentration reaches 1.375 mol. How many minutes will it take for 71.5 percent of the C2H6O break down?
What is meant by the term equivalent full units? How is this concept used in computing average unit costs? Provide an example. (3 questions)
If 5.00 X 10^3kg each of ammonia, oxygen, and methane are reacted, what mass of HCN and water would be produced, assuming 100% yield?
You are analysts comparing the performance of two portfolio managers using the Sharpe Ratio measurement. Manager A shows a return of 16% with a standard deviation of 10%.
The lifetime of a color television picture tube is normally distributed with a mean of 7.8 years and a standard deviation of 3 years. What is the probability that a picture tube will last more than ten years?
Considering the reaction: SO2Cl2(g) --> SO2(g) +Cl2(g) Kp=2.91 and temp = 298k. the partial pressure of SO2 is 137 torr and the partial pressure of Cl2 IS 285 torr. What is partial pressure of SO2Cl2?
what combination of monetary and fiscal policy should they choose? Use a graph, and be sure to identify the effects of each policy.
What are two primary responsibilities of the financial manager. From the Internet what are two additional ideas about the other activities that financial managers are involved in on a day-to-day basis.
calculate the ph of buffer solution made from .20 M HC2H3O2 and .050 M C2H3O2 that has an acid dissociation constant for HC2H3O2 of 1.8*10-5.
What is the probability Linda Lahey, company president, received exactly 1 email between 4 P.M. and 5 P.M. yesterday? What is the probability she received 5 or more email during the same period?
Describe the preparation of 1L solution of 0.02M Tris buffer, PH 7.8. Please don't just write numbers.. explain it.
A multiple stage evaporate process concentrates a weak solution of LiOH from 4.48 wt% to 26.78wt%. This evaporator processes 10 metric tonnes of solution each day.
Determine the mass of precipitate (in grams) that forms when 213.8 mL of 0.132 M CaCl2 solution is reacted with excess AgNO3 solution.
Explain how you would prepare each of the following compounds from benzene: a. phenol b. o-ethyltoulene c. 3-chloroaniline d. p-nitrobenzoic acid
Polyethylene Density, (a) Which is the higher density of polyethylene, linear or branched? Select the choice with the best accompanying explanation.
A Mixture of 80mL of Hydrogen Gas and 60 mL of Oxygen gas is ignited by a spark to form water (please show work) a) does any gas remain unreacted.
At 8:00 a.m., a patient receives a 58-mg dose of I -131 to obtain an image of her thyroid. If the nuclide has a half-life of 8 days, what mass of the nuclide remains in the patient at 5:00 p.m.
What is the free Zn2+ concentration if 0.020 M Zn2+ solution is mixed with an equal volume of 2.0 M NH3? Kf for [Zn(NH3)4]2+ is 4.1 × 10^8
what is happening when Nh4Cl is added to NH3 (a basic solution)? what is happening when HCl is added to NH3? how are these example
Distinguishing the given compounds by Infrared spectroscopy, Cyclohexene and 2-hexyne both have the molecular formula C6H10
What advantages and disadvantages exist for both organic and inorganic solar cells? Describe the main barriers or technical difficulties associated with each.
A box contains a mixture of small copper spheres and small lead spheres. The total volume of both metals is measured by the displacement of water to be 432 cm^3 and the total mass is 4.32 kg
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